Geological and Physiographic divisions of India
Three Geological divisions:
- The peninsular block
- The Himalayas and other Peninsular Mountains
- Indo-Ganga-Brahmaputra Plain
- Peninsualar block is made of gneisses (metamorphic) and granites (igneous).
Six physiographic divisions:
- The Northern and North-eastern Mountains
- The Northern Plain
- The Peninsular Plateau
- The Indian Desert
- The Coastal Plains
- The Islands
Northern and North-Eastern Mountains
Approximate length of the Great Himalayan range: 2500 KM. Width: 160-400 KM
Impact of Himalayas on the climate of India?
It can be divided into five sub-divisions:
- Kashmir (or Northwestern) Himalayas
- Himachal and Uttaranchal Himalayas
- Darjeeling and Sikkim Himalayas
- Arunachal Himalayas
- Eastern Hills and Mountains
Kashmir Himalayas
- Ranges: Karakoram, Ladhakh, Zaskar, Pir Pinjal
- Glaciers: Baltoro, Siachen
- Passes: Zoji La (Great Himalayas), Banihal (Pir Pinjal), Photu La (Zaskar) and Khardung La (Ladakh)
- Lakes: (freshwater) Dal and Wular; (saltwater) Pangong Tso and Tso Moriri
- Pilgrimage: Vaishno Devi, Amarnath Cave, Charar-e-Sharif
- They are also famous for Karewa formations which are useful for the cultivation of Zafran (a local variety of Saffron). Karewas are the thick deposits of glacial clay and other materials embedded with moraines.
- Kashmir is located on the banks of Jhelum river.
- Meanders is a typical feature associated with the rivers in this region.
- In South, there are longitudinal valleys called duns; Jammu dun and Pathankot dun
Himachal and Uttarakhand Himalayas
- Lies between rivers Ravi and Kali
- Drained by two major river systems: Indus and Ganga
- Northernmost part is an extension of the Ladakh desert, lies in Spiti.
- Ranges: Great Himalayan Range, Lesser Himalayas (Dhaoladhar in HP and Nagtibha in Uttarakhand), Shivalik range
- Pilgrimage: Gangotri, Yamunotri, Kedarnath, Badrinath, Hemkund Sahib and the five famous prayags (Refer to Panch Prayag)
- Famous for hill stations: Dharamshala, Mussoorie, Shimla, Kaosani; Cantt.: Kasauli, Almora, Lansdowne, Ranikhet
- The important distinguishing features of this area are the ‘Shivalik’ and ‘Dun formations’.
- Important duns: Chandigarh-Kalka, Nalagarh, Dehra, Harike, Kota
- Dehradun is the largest of all duns: Length – 35-45 KM, Width: 22-25 KM
- Inhabited with the Bhotia They migrate to higher reaches (Bugyals) in summer and return to the valleys during winters.
Darjeeling and Sikkim Himalayas
- Between Nepal Himalayas and Bhutan Himalayas.
- Fast flowing rivers such as Tista
- Peaks: Kanchenjunga
- Tribe: Lepcha
- Has a mixed population of Nepalis, Bengalis and tribals from Central India.
- Importance: Due to the moderate slope, it is best suited for tea plantations. <India produces about 26 pc of tea in the world; second after China. Also, accounts for 12 pc of tea exports; fourth in the world.>
- Duar formations are peculiar to this region.
Arunachal Himalayas
- From Bhutan Himalayas to Diphu pass in the east.
- Direction: Southwest to Northeast
- Peaks: Kangtu and Namya Barwa
- Rivers: Brahmaputra, Kameng, Subansiri, Dihang, Dibang and Lohit.
- These rivers are perennial and have the highest hydro-electric power potential in the country.
- Tribes: Monpa, Daffla, Abor, Mishmi, Nishi and Nagas
- These communities practice shifting cultivation known as Jhumming.
Eastern Hills and Mountains
- Direction: North to South
- Ranges: Patkai Bum, Naga hills, Manipur hills, Mizo or Lushai hills
- These are low hills
- Tribes practice Jhum cultivation
- Rivers: Barak. Most of the Nagaland rivers form a tributary of Brahmaputra. Rivers in eastern Manipur are the tributaries of Chindwin, which in turn is a tributary of the Irrawady of Myanmar.
- Lake: Loktak
- Loktak Lake: is an important lake in Manipur which is surrounded by mountains on all sides. It is the largest freshwater lake in northeastern India. Also called the only Floating Lake in the world due to floating masses of organic matter on it. It serves as a source for hydropower generation, irrigation and drinking water supply.
- Keibul Kamjao National Park located in the Bishnupur district of Manipur is the only floating park in the world and is an integral part of the Loktak Lake. Home to the endangered Manipur Eld’s Deer or Brow-antlered Deer or Sangai or Dancing Deer.
- Mizoram is also known as the ‘Molassis basin’ which is made up of soft unconsolidated deposits.
The Northern Plains
- Formed by the alluvial deposits of rivers – Indus, Ganga and Brahmaputra.
- Length: 3200 KM; Width: 150-300 KM
Three main zones:
- Bhabar
- Tarai
- Alluvial Plains (Khadar and Bangar)
Bhabar
- Narrow belt. 8-10 KM wide.
- Paralllel to Shivalik at the break-up of the slope. Hence, streams and rivers deposit heavy rocks (and at times disappear) in this zone.
Tarai
- South of Bhabar. 10-20 KM wide.
- Rivers re-emerge and create marshy and swampy conditions known as Tarai.
Alluvial Belt
- South of Tarai.
- Features of mature stage of fluvial erosional and depositional landforms such as sand bars, meanders, ox-bow lakes and braided channels. Riverine islands in Brahmaputra.
- Brahmaputra takes a turn an almost 90 degree turn at Dhubri (Assam) before entering Bangladesh.
Peninsular Plateau
- Bounded by the Delhi ridge, Rajmahal Hills, Gir range and Cardamom hills.
- Made up of a series of patland plateaus: Hazaribagh, Palamu, Ranchi, Malwa, Coimbatore, Karnataka etc.
- One of the oldest and most stable landmass of India.
- Physiographic Features: Tors, block mountains, rift valleys, spurs, bare rocky structures, hummocky hills and quartzite dykes offering natural sites for water storage.
- Black soil in western and northwestern parts.
- Bhima fault in this region has frequent seismic activity (Lathur earthquake)
- NW part also has ravines and gorges: Chambal, Bhind and Morena.
Three broad regions:
- Deccan Plateau
- Central Highlands
- Northwestern Plateau
Deccan Plateau
- Bordered by Eastern Ghats, Satpura, Maikal range and Mahadeo hills
- Important ranges: WG: Sahyadri, Nilgiri, Anaimalai and Caradamom hills; EG: Javadi hills, Palconda range, Nallamala Hills, Mahendragiri hills
- EG and WG meet at Nilgiri hills.
- Highest peak: Anaimudi (2695 m) on Anaimalai hills; Dodabetta (2637 m) on Nilgiri hills.
- Rivers: Mahanadi, Godavari, Krishna, Kaveri etc.
Central Highlands
- Bounded by the Aravali and Satpura range.
- Relic mountains, highly denuded and form discontinuous ranges.
- Near Jaisalmer it is covered by the longitudinal sand ridges and crescent-shaped sand dunes called barchans.
- Elevation: 700-1000 m
- Banas, a tributary of Chambal, originates in the Aravalli. Other tributaries of Yamuna originate from the Vindhyan and Kaimur ranges.
- Minerals in Chotanagpur plateau.
Northeastern Plateau
- Extension of the main Peninsular plateau.
- Meghalaya and Karbi Anglong plateau.
- Megahalaya plateau: Garo hills, Khasi hills and Jaintia hills (named after the tribals inhabiting the region)
- Rich in minerals like coal, iron, sillimanite, limestone and uranium.
- Receives maximum rainfall from SW monsoon. Hence, Meghalaya plateau has a highly eroded surface. Cherrapuni and Myswarnam.
Indian Desert
- Aka Marusthali
- Northwest of the Aravali hills
- Dotted with longitudinal dunes and barchans.
- Low rainfall: >150 mm per year Low vegetation cover
- Evidence that this area was under the sea during the Mesozoic era.
- Features: mushroom rocks, shifting dunes and oasis.
- Rivers are ephemeral: Luni. Brackish lakes. Inland drainage.
Coastal Plains
Two divisions:
- Western coastal plains
- Eastern Coastal Plains
Western Coastal Plains
- Submerged coastal plain. Hence, a narrow belt. Narrow in middle and broader towards north and south.
- Ports: Provides natural conditions for the development of ports and harbours due to submergence. Kandla, Mazagaon (Mumbai), JLN port Navha Sheva, Maramagao, Mangalore, Cochin etc.
- Mumbai has the world’s largest natural harbour.
- May be divided into: Kachchh and Kathiawar coast in Gujarat, Konkan coast, Goan coast and Malabar coast.
- Rivers don’t form delta.
- Kayals (Backwaters): Found in the Malabar coast. Used for fishing and inland navigation. Every year Nehru Trophy Vallamkali (boat race) is held in Punnamada Kayal in Kerala.
Eastern Coastal Plains
- Broader
- Emergent coast. Hence, less number of ports and harbours. Chennai, Vizag, Paradwip, Haldia.
- Delta formation
The Islands
Two major Divisions:
- Andaman and Nicobar
- Lakshwadeep & Minicoy
Andaman and Nicobar
- Two major island groups: Ritchie’s archipelago and the Labrynth island.
- The group is divided into: Andaman in the North and Nicobar in the South.
- Andaman and Nicobar separated by the Ten Degree channel.
- Barren Island
- Peaks: Saddle Peak (N.Andaman – 738 m), Mt. Diavolo (Middle Andaman – 515 m), Mt. Koyob (S Andaman – 460 m) and Mt. Thuiller (Great Nicobar – 642 m)
- Coral deposits found
- Convectional rainfalls and equatorial type of vegetation.
Lakshadweep and Minicoy
- Entire group built of coral deposits.
- Total of 36 islands of which 11 are inhabited.
- Smallest UT
- Minicoy is the largest island
- Separated by the 9 Degree Channel, north of which is the Amini Island and to the south Canannore island.
- These islands have storm beaches consisting of unconsolidated pebbles, shingles, cobbles and boulders.
Major Monuments of Ancient Period
1. | Udaygiri Caves | During Chandragupta’s reign at Vidisha, M.P. | ||||||||||
2. | Angorwatt Temples | Suryavarman Ii | ||||||||||
3. | Vikramashila University | Pala King Dharampala | ||||||||||
4. | Kailash Temple (Ellora) | Rashtrakuta king Krishna I | ||||||||||
5. | Dilwara Temple | Tejapala | ||||||||||
6. | Rathas of Mamallapuram | Mahendravarman I (Pallava King) | ||||||||||
7. | Khajuraho temples | Chandelas | ||||||||||
8. | Martanda temple (Kashmir) | Lalitaditya Muktapida | ||||||||||
9. | Gommateswara (Son of Rishabnath) | Chamundaraya, Minister of the Ganga King, Rajamalla | ||||||||||
(Sravanbelagola, Karnataka) | ||||||||||||
10. | Hoysalesvara Temple (at Halebid) | Ketamalla, a minister of KingVishnuvardhana (Karnataka) |
The Mauryas : Extent of empire, Kalinga War and its Impact; Asoka’s Dhamma, Foreign Policy, Development of Art & Architecture during the Mauryan period
Foundation of the Mauryan Empire:
The foundation of the Maurya Empire in 321 B.C. by Chandragupta Maurya was a unique event in history.
Particularly in view of the fact that it was found shortly after Alexander’s victorious campaigns in North-West India during 327 B.C. – 325 B.C.
There is no unanimity with regard to the ancestry of the Mauryas. The Puranas describe them as Sudras and uprighteous probably due to the fact that the Mauryas were mostly patrons of heterodox sects.
The Buddhist works (e.g. Mahavamsa and Mahavamshatika) have attempted to link the Mauryan dynasty with the tribe of the Sakyas to which the Buddha belonged. In the Divyavadana, Bindusara, the son of Chandragupta, is described as Kshatriya Murdabhishikta or annointed Kshatriya.
According to the Buddhist writers, the region from which the Mauryas came was full of peacocks (Mayura in Sanskrit and Mora in Pali), and hence they came to be known as the Moriyas (Pali form of Mauryas). It is obvious from this that the Buddhists were trying to elevate the social position of Asoka and his predecessors.
Jain tradition given in Hemachandra’s Parisisthaparvan relates Chandragupta as the son of a daughter of the chief of a village of peacock-tamers (Mayura-Poshaka). The use of the term ‘Vrishala’ and ‘Kula-hina’ in the Mudrarakshasa of Vishakadatta for Chandragupta probably means that Chandragupta was a mere upstart of an unknown family.
The Greek classical writers, such as Justin, describes Chandragupta Maurya as a man of humble origin, but does not mention his exact caste. The Junagarh Rock Inscription of Rudradaman (150 A.D.) mentions the Vaisya Pusyagupta as the provincial governor of the Maurya king Chandragupta. There is a reference to Pusyagupta being the brother-in-law of Chandragupta which implies that the Mauryas may have been of Vaisya origin.
In conclusion, we can say that the Mauryas were of comparatively humble origin belonging to the Moriya tribe and were certainly of a low caste.
Chandragupta Maurya (321-297 B.C.):
Chandragupta Maurya succeeded to the Nanda throne in 321 B.C. after dethroning the last Nanda ruler (Dhanananda) at the age of 25. He was the protege of the Brahmin Kautilya, also known as Chanakya or Vishnugupta, who was his guide and mentor both in acquiring the throne and in keeping it.
The acquisition of Magadha was the first step in establishing the new dynasty. Once the Ganges valley was under his control, Chandragupta moved to the north-west to exploit the power vacuum created by Alexander’s departure. The areas of the North-West fell to him rapidly.
Moving back to Central India he occupied the region north of the Narmada River. But 305 B.C. saw him back in the north-west involved in a campaign against Seleucus Nikator (Alexander’s general who gained control of most Asiatic provinces of the Macedonian empire) which Chandragupta finally won in 303 B.C. Both signed a treaty and entered into a marriage alliance.
Who married whose daughter is not clearly known? But it seems that Chandragupta made a gift of 500 elephants to the Greek general and obtained the territory across the Indus viz., the Satrapies of Paropanisadai (Kabul), Aria (Herat), Arachoisa (Kandahar), and Gedrosia (Baluchistan). Seleucus’s ambassador, Megasthenes, lived for many years at the Maurya court at Pataliputra and travelled extensively in the country.
According to Jaina sources (Parisistaparvan), Chandragupta embraced Jainism towards the end of his life and stepped down from the throne in favour of his son, Bindusara. Accompanied by Bhadrabahu, a Jaina saint, and several other monks he is said to have gone to Sravana Belgola near Mysore, where he deliberately starved himself to death in the approved Jaina fashion (Sallekhana).
Kautilya and Arthashastra:
Kautilya was the Prime Minister of Chandragupta Maurya. Chandragupta found the Mauryan Empire with his help. Arthashastra was written by him. It is the most important source for writing the history of the Mauryas and is divided into 15 adhikarnas or sections and 180 Prakaranas or subdivisions. It has about 6,000 slokas. The book was discovered by Shamasastri in 1909 and ably translated by him.
It is a treatise on statecraft and public administration. Despite the controversy over its date and authorship, its importance lies in the fact that it gives a clear and methodological analysis of economic and political conditions of the Mauryan period.
The similarities between the administrative terms used in the Arthashastra and in the Asokan edicts certainly suggests that the Mauryan rulers were acquainted with this work.As such his Arthashastra provides useful and reliable information regarding the social and political conditions as well as the Mauryan administration.
- King:
Kautilya suggests that the king should be an autocrat and he should concentrate all powers into his own hands. He should enjoy unrestricted authority over his realm. But at the same time, he should give honour to the Brahmanas and seek advice from his ministers. Thus the king though autocrat, should exercise his authority wisely.
He should be cultured and wise. He should also be well-read so as to understand all the details of his administration. He says that the chief cause of his fall is that the king is inclined towards evil. He lists six evils that led to a king’s decline. They are haughtiness, lust, anger, greed, vanity and love of pleasures. Kautilya says that the king should live in comfort but he should not indulge in pleasures.
- Ideals of Kingship:
The major ideal of kingship according to Kautilya is that his own well-being lies in the well-being of his people of only the happy subjects ensure the happiness of their sovereign. He also says that the king should be ‘Chakravarti’ or the conqueror of different realms and should win glory by conquering other lands.
He should protect his people from external dangers and ensure internal peace. Kautilya maintained that the soldiers should be imbued with the spirit of a ‘holy war’ before they march to the battlefield. According to him, all is fair in a war waged in the interest of the country.
- About the Ministers:
Kautilya maintains that the king should appoint ministers. King without ministers is like a one-wheeled chariot. According to Kautilya, king’s ministers should be wise and intelligent. But the king should not become a puppet in their hands.
He should discard their improper advise. The ministers should work together as; a team. They should hold meetings in privacy. He says that the king who cannot keep his secrets cannot last long.
- Provincial Administration:
Kautilya tells us that the kingdom was divided into several provinces governed by the members of the royal family. There were some smaller provinces as Saurashtra and Kambhoj etc. administered by other officers called ‘Rashtriyas’. The provinces were divided into districts which were again sub-divided into villages. The chief administrator of the district was called the ‘SthaniK while the village headman was called the ‘Gopa’.
- Civic Administration:
The administration of big cities as well as the capital city of Pataliputra was carried on very efficiently. Pataliputra was divided into four sectors. The officer incharge of each sector was called the ‘Sthanik. He was assisted by junior officers called the ‘Gopas’ who looked after the welfare of 10 to 40 families. The whole city was in the charge of another officer called the ‘Nagrika’. There was a system of regular census.
- Spy Organisation:
Kautilya says that the king should maintain a network of spies who should keep him well informed about the minute details and happenings in the country, the provinces, the districts and the towns. The spies should keep watch on other officials. There should be spies to ensure peace in the land. According to Kautilya, women spies are more efficient than men, so they should, in particular, be recruited as spies. Above all the kings should send his agents in neighbouring countries to gather information of political significance.
- Shipping:
Another significant information that we gather from Kautilya is about shipping under the Mauryas. Each port was supervised by an officer who kept vigil on ships and ferries. Tolls were levied on traders, passengesand fishermen. Almost all ships and boats were owned by the kings.
- Economic Condition:
Kautilya says that poverty is a major cause of rebellions. Hence there should be no shortage of food and money to buy it, as it creates discontent and destroys the king. Kautilya therefore advises the king to take steps to improve the economic condition of his people. Kautilya says that the chief source of income was the land revenue in villages while the tax on the sale of goods was the chief source in the cities.
Bindusara (297-272 B.C.):
In 297 B.C., Chandragupta was succeeded by his son Bindusara, known to the Greeks as Amitrochates (Sanskrit, Amitraghata, the destroyer of foes). Bindusara campaigned in the Deccan, extending Mauryan control in the peninsula as far south as Mysore.
He is said to have conquered the land between the two seas’, presumably the Arabian Sea and the Bay of Bengal. Kalinga (modern Orissa) on the eastern coast, however, remained hostile and was conquered in the succeeding reign by Bindusara’s son Ashoka.
In foreign affairs, Bindusara maintained the friendly relations with the Hellenic west established by his father. He is said to have had contacts with Antiochus I Soter, king of Syria, son of Seleucus Nikator whose ambassador, Deimachos was said to have been at his court.
A man of wide tastes and interests, he requested Antiochus I to send him some sweet wine, dried figs and a sophist; the last being not meant for export, however, could not be sent. Pliny mentions that Ptolemy Philadelpus of Egypt sent Dionysius as his ambassador to India. The Ashokavadana informs us that a revolt took place in Taxila during the reign of Bindusara, when the citizens objected to the oppression of the higher officials. Bindusara sent Asoka to put an end to the revolt, which he did successfully.
Ashoka (268-232 B.C.):
Bindusara’s death in 272 B.C. led to a struggle for succession among his sons. It lasted for four years and in 268 B.C. Ashoka emerged successful. According to Asokavadana, Subhadrangi was the mother of Ashoka and it describes her as the daughter of a Brahman of Champa.
The Divyavadana version largely agrees with that of the Ashokavadana. She is called Janapadakalyani, or in other version of the same source Subhadrangi. In the Ceylonese source, Vamsatthapakasini the Queen mother is called Dharma.
According to legend, Ashoka as a young prince was given charge of the Viceroyship of Ujjain. Buddhist texts inform us that a revolt took place in Taxila during the reign of Bindusara and Ashoka was sent to quell it. This he did without antagonising the local populace. Corroboration for this may be sought in an Aramaic inscription from Taxila which refers to Priyadarshi the viceroyor governor.
During his Viceroyalty of Ujjain he fell in love with the daughter of a merchant of Vidisa, referred to as Devi or Vidisamahadevi or Sakyani. Ashoka’s two other well-known queens were Karuvaki and Asandhimitra. The second queen, Karuvaki is mentioned in the Queen’s Edict inscribed on a pillar at Allahabad, in which her religious and charitable donations are referred to. She is described as the mother of Prince Tivara, the only son of Asoka to be mentioned by the name in the inscription.
As regards Ashoka’s accession to the throne there is a general agreement in the sources that Ashoka was not the crown prince but succeeded after killing his brothers. There is, however, no unanimity in the texts either regarding the nature of the struggle or the number of his brothers.
In one place the Mahavamsa states that Asoka killed his elder brother to become king whereas elsewhere in the same work and also in the Dipavamsa he is said to have killed ninety-nine brothers. The Mahavamsa states that although he put ninety-nine brothers to death, Asoka spared the life of the youngest of these, Tissa who was later made vice-regent (He retired to a life of religious devotion having come under the influence of the preacher Mahadhammarakkhita and then known by the name of Ekaviharika). It seems that though there was a struggle, a lot of descriptions of it are plain exaggerations.
After ascending the throne, Ashoka according to Taranatha spent several years in pleasurable pursuits and was consequently called Kamasoka. This was followed by a period of extreme wickedness, which earned him the name of Candasoka. Finally his conversion to Buddhism and his subsequent piety led him to be called Dhammasoka.
The most important event of Ashoka’s reign seems to have been his conversion to Buddhism after his victorious war with Kalinga in 260 B.C. Kaling controlled the routes to South India both by land and sea, and it was therefore necessary that it should become a part of the Mauryan Empire.
The 13th Major Rock Edict vividly describes the horrors and miseries of this war and the deep remorse it caused to Ashoka. In the words of the Mauryan emperor, ‘A hundered and fifty thousand people were deported, a hundred thousand were killed and many times that number perished…………. It has been stated in the past that he was dramatically converted to Buddhism immediately after the battle, with its attendant horrors.
But this was not so, and as one of his inscriptions, viz., Bhabra Edict, states it was only after a period of more than two years that he became an ardent supporter of Buddhism under the influence of a Buddhist monk, Upagupta.
He also states his acceptance of the Buddhist creed, the faith in the Buddha, the Dhamma (the teachings of the Buddha), and the Samgha. Written specifically for the local Buddhist clergy, he also refers to himself as the ‘king of Magadha’, a title which he uses only on this occasion.
The Buddhist church was reorganised during his reign with the meeting of Third Buddhist council at Pataliputra in 250 B.C. under the chairmanship of Mogalliputta Tissa but the emperor himself does not refer to it in his inscriptions.
This stresses the point that Asoka was careful to make a distinction between his personal support for Buddhism and his duty as emperor to remain unattached and unbiased in favour of any religion. The Third Buddhist Council is significant because it was the final attempt of the more sectarian Buddhists, the Theravada School, to exclude both dissidents and innovators from the Buddhist Order.
Furthermore, it was at this Council that it was decided to send missionaries to various parts of the sub-continent and to make Buddhism an actively proselytizing religion.
Ashoka mentions various of his contemporaries in the Hellenic world with whom he exchanged missions, diplomatic and otherwise in his 13th Major Rock Edict. These have been identified as Antiochus II Theos of Syria, (Amtiyoga)the grandson of Seleucus Nikator; Ptolemy III Philadelphus of Egypt (Tulamaya); Antigonus Gonatus of Macedonia (Antekina); Magas of Cyrene (Maka) and Alexander of Epirus (Alikyashudala).
Communications with the outside world were by now well developed. Asokan inscriptions corroborated by archaeological data are a reliable guide to the extent of the Mauryan Empire.
Magadha was the home province of the Mauryas and the city of Pataliputra its capital. Other cities mentioned in the inscriptions include Ujjain, Taxila, Tosali near Bhubaneshwar, Kausambi and Suvarnagiri in Andhra Pradesh.
According to tradition, Kashmir was included in the Ashokan Empire and that Ashoka built the city of Srinagar. Khotan in Central Asia was also supposed to have come under Mauryan sway.
The Mauryans had close connections with the areas of modern Nepal since the foothills were a part of the empire. One of Ashokan’s daughter is said to have married a nobleman from the mountains of Nepal.
In the east, Mauryan influence extended as far as the Ganga delta. Tamralipti or modern Tamluk was an important port on the Bengal coast from where the ships sailed for Burma, Sri Lanka as well as for South India. Another major port on the west coast was Broach at the mouth of the Narmada.
Kandahar formed the western-most extension of the Mauryan Empire and Ashokan inscriptions mention the Gandharas, Kambojas and the Yonas as his borderers. Through the north-west the Mauryas maintained close contacts with their neighbours, the Seleucid Empire and the Greek kingdoms.
Mauryan relations with Sri Lanka were very close and Asoka sent his son Mahindra and daughter Sanghamitra to preach Buddhism in Sri Lanka. Asokan inscriptions in the south mention several people with whom he was on friendly terms – the Cholas, Pandyas, Satiyaputras and Keralaputras (Major Rock Edict II.)
Disintegration of the Empire:
Towards the end of his reign Asoka’s grip over the imperial organisation became weak. The Maurya Empire began to decline with the death of Asoka in 232 B.C., soon after it broke up. The evidence for the later Mauryas is very meagre.
The Puranas, besides Buddhist and Jaina literature, do provide us with some information on the later Mauryas, but there is no agreement among them. Even among the Puranas, there is a lot of variance between one Puranas and another. The one statement on which all the Puranas are in agreement is that the dynasty lasted 137 years.
Ashoka’s death was followed by the division of the empire into western and eastern halves. The western part including the north-western province, Gandhara and Kashmir was governed by Kunala (one of the sons of Ashoka) and then for a while by Samprati (according to Jaina tradition he was a grandson of Ashoka and a patron of Jainism).
It was later threatened from the north-west by the Bactrian Greeks, to whom it was practically lost by 180 B.C. From the south, the threat was posed by the Andhrasorthe Satavahanas who later came to power in the Deccan.
The eastern part of the Maurya Empire, with its capital at Pataliputra, came to be ruled by Dasaratha (probably one of the grandsons of Ashoka). Dasaratha apart from being mentioned in the Matsya Purana is also known to us from the caves in the Nagarjuni Hills, which he dedicated to the Ajivikas.
According to the Puranas, Dasaratha reigned for eight years. This would suggest that he died without an heir old enough to come to the throne. The same sources speak of Kunala ruling for eight years.
He must have died at about the same time as Dasaratha; so that Sampriti now ruling in the west may have successfully regained the throne at Pataliputra, thus uniting the empire again.
This event occurred in 223 B.C. However, the empire had probably already begun to disintegrate. Jaina sources mention that Samprati ruled from Ujjain and Pataliputra. After Dasaratha and Samprati came Salisuka, a prince mentioned in the astronomical work, the Gargi Samhita, as a wicked quarrelsome king.
The successors of Salisuka, according to the Puranas, were Devavarman, Satamdhanus and finally Brihadratha. The last prince was overthrown by his commander-in-chief, Pushyamitra, who laid the foundations of a new dynasty called Sunga dynasty.
Causes for the Decline of the Mauryas:
The Magadhan Empire, which had been reared by successive wars culminating in the conquest of Kalinga, began to disintegrate after the death of Ashoka in 232 B.C. The reason given by historians for such, rapid declines are as conflicting as they are confusing.
Some of the very obvious and other controversial causes for the decline of the Mauryan Empire are discussed below:
- One of the more obvious reasons for the decline was the succession of weak kings after Ashoka.
- A further and immediate cause was the partition of the empire into two, the eastern part under Dasaratha and the western part under Kunala. Had the partition not taken place, the Greek invasions of the north-west could have been held back for a while, giving the Mauryas a chance to re-establish some degree of their previous power. The partition of the empire disrupted the various services as well.
- Scholars have suggested that the pro-Buddhist policies of Ashoka and the pro-Jaina policies of his successors alienated the Brahmins and resulted in the revolt of Pushyamitra, the founder of the Shunga dynasty. H.C. Raychaudhuri maintains that Asoka’s pacifist policies were responsible for undermining the strength of the empire.
The second argument blames Ashoka’s emphasis on nonviolence for weakening the empire and its military strength. Haraprasad Sastri holds the view that the decline of the Mauryan Empire was the result of the Brahmanical revolt on account of ban on animal sacrifices and undermining the prestige of the Brahmanas. Both these arguments are rather simplistic.
Pushyamitra’s usurpation of the throne cannot be seen as a brahmana revolt because by that time the administration had become so ineffective that officials were willing to accept any viable alternative.
The second proposition does not take into account the nature of the policy of non-violence. There is nothing in the Ashokan inscriptions to suggest demobilization of the army. Similarly capital punishment continued. The emphasis was on the reduction of species, and numbers of animals killed for food. There is nothing to suggest that the killing of animals stopped completely.
- Another reason put forward by some historians such as D.D. Kosambi is that there was considerable pressure on the Mauryan economy under the later rulers leading to heavy taxation.
This opinion is again one-sided and is not corroborated by archaeological data. Excavations at sites like Hastinapura and Sisupalgarh have shown improvement in the material culture.
- The organization of administration, and the conception of the state or the nation, were of great significance in the causes of the decline of the Mauryas. The Mauryan administration was of an extremely centralized character which necessitated a king of considerable personal ability.
In such a situation the weakening of the central control leads automatically to a weakening of the administration. With the death of Ashoka and the uneven quality of his successors, there was a weakening at the centre, particularly after the division of the empire.
- The Mauryan state derived its revenues from taxing a variety of resources which would have to grow and expand so that the administrative apparatus of the state could be maintained.
Unfortunately the Mauryas made no attempt to expand the revenue potential or to restructure and reorganise the resources. This inherent weakness of the Mauryan economy when coupled with other factors led to the collapse of the Mauryan Empire.
- The spread of material culture of the Gangetic basin to the outlying areas led to the formation of new kingdoms.
Drainage system and River of Sikkim
Drainage system and River of Sikkim
- Sikkim is a small Himalayan state in north-east India situated between 27degree 00’ 46″ to 28 degree 07’ 48″ N latitude and 88 degree 00’ 58″ to 88 degree 55’ 25″E longitude with geographical area of 7,096 sq km constituting only 0.22% of total geographical area of India.
- It has a human population of 5,40,493 as per Census, 2001, which constitutes only 0.05% of India’s total population.
- The state is somewhat rectangular in shape with maximum length from north to south of about 112 km and maximum width of 90 km from east to west.
- Sikkim is bounded in the north by the Tibetan plateau, by China (Tibet) on the northeast, by Pangola range of Bhutan on the southeast, by Darjeeling district of West Bengal on the south and Singalila range and Mt. Khangchendzonga on the west and northwest.
- Entire state of Sikkim constitutes upper basin of Teesta river except for a small area of 75.62 sq km in extreme southeast that of Jaldhaka river, which originates in East Sikkim and flows through West Bengal parallel to Teesta river to meet Brahmaputra river.
- In southernmost part of Sikkim, Teesta river flows in southwest direction and defines the inter-state boundary between Sikkim and West Bengal up to Melli Bazar where it is joined by Rangit river which drains West Sikkim district.
- Rangit river, the largest tributary of Teesta river in Sikkim, from Naya Bazar point flows in southeast direction and marks the interstate boundary between Sikkim and West Bengal in the southwest.
Teesta River
- One of the rivers that almost flow right across the length of Sikkim is the Teesta.
- It’s major tributary is the Rangeet which originates from the Rathong Glacier, meets it at the border between Sikkim and West Bengal.
- Teesta originates from the Cholamu lake where Teesta is hardly a stream.
- No one can imagine that this innocuous looking stream would transform into a thundering mighty river less than a hundred kilometers downstream.
- The source of the Teesta is the pristine Tso Lhamu Lake in North Sikkim, some 5,300 metres above sea level.
- The glacial waters then move downwards to meet Zemu Chu just above Lachen village and then rushing down deep gorges it meets Lhachung Chu at Chungthang.
- At Mangan, the river is joined by the Talung Chu as it continues its journey down, finally reaching Singtam in East Sikkim, becoming slower and widening to almost double its width.
- Further down at Melli, the Teesta merges with the river Rangeet which is born of the Rathong glacier in West Sikkim, before entering the plains of North Bengal and eventually joining Brahmaputra in Bangladesh.
- During monsoons the otherwise innocuous looking rivers of Sikkim become swollen, swift, muddy and dangerous.
- The rivers are narrow, serpentine and full of rocks and hence are not navigable.
- Because of swift currents hitting rocks, the rivers are very noisy and can be heard for miles together.
- The Teesta finally joins the Bhramaputra in Bangladesh.
- The rivers are fed by snow melting on the mountains as well as rain that accumulates in the catchment areas during the monsoons.
- Human settlements usually must exist above the level of rivers and hence even if flooding takes place life and property remain safe.
The Rangeet or Rangit
- It is a tributary of the Teesta river, which is the largest river in the Indian state of Sikkim.
- The Rangeet river originates in the Himalayanmountains in West Sikkim The river also forms the boundary between Sikkim and Darjeeling district.
- A perennial river, it is fed by the melting snow of the Himalayas in early summer and the monsoonrains in June–September.
- It is popular among rafting enthusiasts owing to its turbulent waters.
- The river flows past the towns of Jorethang, Pellingand Legship.
- During its final few kilometres, it joins the TeestaRiver at a confluence known as Tribeni, which is a popular picnic spot.
- The Rangeet River has an NHPChydropower plant with the capacity of 60 megawatts (80,000 hp) capacity in Sikkim.
River Rangpo
- It is a river in the Indian state of Sikkim.
- A tributary of the Teesta River, it is fed by the Rangpo chu.
- The town of Rangpo in Sikkim lies on River Rangpo north bank.
- The river forms the border between Sikkim and West Bengal states at Rangpo town.
- There is no separate name for the town in West Bengal that lies on south bank of the river and therefore it is also called Rangpo.
- The river runs through most of East Sikkim and a few parts of the Darjeeling District of North Bengal.
- This tributary flows mainly from east to west with a variable channel pattern including braided, meandering, straight, gorge and blocked lake.
- Landslides are very common along the river bank as cliff-like bedrocks are considerably exposed along the river valley wall.
- Its confluence with Teesta River is immediately downstream of Rangpo town.
The Talung River
- It is an east-south east flowing river in the North Sikim Himalayas.
- It originates at the Talung-Tonsyong Glacier’s confluenceat the meeting point of Talung and Tongshiong River & then flows east south east to meet the River Teesta near Singhik, North Sikkim of India.
- The upper catchment is fed by a number of streams and rivulets.
- These streams & rivulets flow from the southern part of Simvu-Sinialchu region to meet the main river.
- Another tributary which feeds the main stream flows from the Zorpetam mountain valley.
- Zorepetam valley is a typical inaccessible mountain terrain in the east of Pandim and Tinchenkhang.
- Number of River of Sikkim originates from this region.
- Owing to the complexity of the river systems its name in its catchment area changes from place to place.
- According to records it is Rukel Chu at first, then Rungayang or Rongyoung Chu and thereafter Talung River or Tholung Chu till its confluence
The Jaldhaka River
- It is also known as Dichu River in earlier times, is a trans-boundary river with a length of 192 kilometres that originates from the Kupup or Bitang Lake in southeastern Sikkim in the eastern Himalayas and flows through Bhutan and the Kalimpong, Jalpaiguri and Cooch Behar districts of West Bengal, India.
- At that point the river enters Bangladesh through the Lalmonirhat District and then joins with the Dharla River until the Dharla debouches into the Brahmaputra River near the Kurigram District.
- Due to the river’s wandering over several international borders, only a small length of the river lies within Bangladesh
The Lachen River
- It is a tributary of the Teesta River in the state of Sikkim, India.
- It is one of the two main tributaries of the Teesta along with the Lachung River, which rise on opposite sides of the Donga Rangein neighbouring Bhutan and converge in Chungthang in the North Sikkim district.
The Lachung River
- Itis a tributary of the Teesta River located in the North Indian state of Sikkim.
- It is a chief tributary of the Teesta, which is an important river in Sikkim along with Rangeet River.
- The village of Lachungis perched on the craggy bank of the river approximately 23 kilometres from Chungthang. It is at Chungthang where the Lachung and Lachen rivers converge and give rise to the Teesta.
- The river is 2,500 metres (8,200 ft) above sea level.
Drainage systems
Drainage systems, also known as river systems, are the patterns formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of the land, whether a particular region is dominated by hard or soft rocks, and the gradient of the land.
Teesta River Basin Information
- The river Teesta is one of the main Himalayan rivers and originates from the glaciers of Sikkim in North at an elevation of about 5,280 m.
- The river rises in mountainous terrain in extreme north as Chhombo Chhu, which flows eastward and then southward to be joined by Zemu Chhu, upstream of Lachen village near Zema.
- The river takes a gentle turn in southeast direction and meets Lachung Chhu at Chungthang where it takes the form of a mighty Himalayan river.
- Teesta, therefore, is the main river of the state with its several tributaries viz. Zemu Chhu, Lachung Chhu, Rangyong Chhu, Dik Chhu, Rani Khola, Rangpo Chhu and Rangit river and constitutes an extremely important resource of the state.
- After the confluence of Teesta river and Lachung Chhu at Chungthang, the river gradually widens and takes a strong westward turn upstream of Tong and after flowing down to Singhik, the river drops from 1,550 m to 750 m.
- At Singhik, the river receives one of its major tributaries, Rangyong Chhu on its right bank, which originates from the Talung glacier, a part of the Khangchendzonga mountain range.
- From Singhik, the river flows southwards to Dikchu with a 200 m drop through a very deep valley for about 30 km.
- From Dikchu onwards, the river takes many sharp and wide curves and flows down to Singtam with a further drop of about 200m.
- Rangpo Chhu, which drains the Chhangu lake area in East Sikkim joins Teesta river on its left bank at Rangpo. Downstream of Rangpo, Teesta river widens and is joined by Rangit river at Melli Bazar on Sikkim-West Bengal border.
- From Melli Bazar downstream, the river leaves the hilly terrain and enters the plains of West Bengal at Sevoke near Siliguri. Teesta river ultimately drains into Brahmaputra at Teestamukh Ghat (Kamarjani-Bahadurabad in Rangpu district of Bangladesh) and traverses a distance of about 400 km from its origin.
- Teesta and most of its tributaries are flashy mountain rivers and carry boulders and considerable quantity of sediment. The flow is turbulent and characterised by high velocities.
- Throughout its course in Sikkim, Teesta and its tributaries flow in very narrow and deep valleys having precipitous hill slopes, except where the tributaries join the main stream.
- The hill slopes are mostly friable and landslips are very common throughout the basin.
WATERSHEDS OF TEESTA BASIN IN SIKKIM
- The main Teesta while flowing from north to south divides the state into two parts.
- Teesta drainage basin in Sikkim cover an area of 7,020.38 sq km of Sikkim and 75.32 sq km of the state is under Jaldhaka river watershed, which is not the part of Teesta basin. In order to understand the profile and behaviour of the prominent tributaries of Teesta river basin in Sikkim, Teesta basin was divided into its major tributary watersheds.
- The entire Teesta basin falling in Sikkim has been delineated into 17 watersheds following the conventional methodology of delineation based upon drainage order classification.
- For this Survey of India toposheets at 1:50,000 scale were used, with ridge line demarcating the boundaries between adjacent watersheds.
- These watersheds vary in size and shape depending upon the drainage pattern in a particular watershed.
Civil Disobedience Movement and Gandhi-Irwin Pact, 1931
- Started by Gandhi on 12th March 1930 with the Dandi March. Reached Dandi on April 6.
- Defiance of forest laws in Maharashtra, Central Province and Karnataka. Refusal to pay chaukidari tax in Eastern India.
- Wide participation of women
- Khan Abdul Gaffar Khan organized Khudai Khidmatgars (aka Red Shirts)
- Nagaland: Rani Gaidilieu
- First RTC, 1930
- Congress boycotted
- Gandhi-Irwin Pact, 1931
- Government agreed to release the political prisoners who had remained non-violent
- Right to make salt for consumption
- Right to peaceful picketing of liquor and foreign cloth shops
- Congress suspended the Civil Disobedience Movement
- Agreed to take part in the second RTC
CHARACTERISTICS AND PROBLEMS OF INDIAN AGRICULTURE
CHARACTERISTICS AND https://exam.pscnotes.com/problems-of-indian-Agriculture-notes-for-state-psc-exams”>Agriculture“>Problems of Indian Agriculture
- Subsistent in Character
- Heavy Pressure of Population
- Predominance of Food Grains
- Mixed Cropping
- High Percentage of the Reporting Area under Cultivation
- Small Size of Holdings and Fragmentation of Fields
- Limited Intensive Agriculture
- Primitive Technology
- Indian Agriculture is Labour Intensive
- Rain-fed Agriculture
- Less Area under Leguminous and Fodder Crops
- Tradition Bound
- Low Productivity
- Government Policy
- Lack of Definite Agricultural Land Use Policy
- Lack of Marketing and Storage Facilities
- Low Status of Agriculture in the Society
- Land Tenancy
- POVERTY and Indebtedness of the Farmers
- Inadequacy of Extension Service
- Inadequate Agricultural Research and Education, Training, and Extension
- Soil Erosion and Soil Degradation
- Other Characteristics and Problems
AQUA CULTURE
- the cultivation of aquatic organisms.
- aquaculture, also known as aquafarming, implies the cultivation of aquatic populations under controlled conditions.
- Mariculture refers to aquaculture practiced in marine environments.
- Particular kinds of aquaculture include Agriculture-notes-for-state-psc-exams”>Agriculture (the production of kelp, seaweed, and other algae), fish farming, shrimp farming, shellfish farming, and growing of cultured pearls.
Growth and Development of Aquaculture
- has been used in China since circa 2500 BC.
- practice of aquaculture gained prevalence in Europe during theMiddle Ages since fish were scarce and thus expensive.
- Americans were rarely involved in aquaculture until the late 20th century but California residents harvested wild kelp and made legal efforts to manage the supply starting circa 1900, later even producing it as a wartime resource.
- the rise of aquaculture is a contemporary phenomenon.
Types of Aquaculture 1. Algaculture
- A form of aquaculture involving the farming of species of algae.
- Majority of algae are intentionally cultivated fall into the category of microalgae, also referred to as phytoplankton, microphytes, or planktonic algae.
- Macro algae, commonly known as seaweed, also have many commercial and industrial uses, but due to their size and the specific requirements of the Environment in which they need to grow, they do not lend themselves as readily to cultivation on a large scale as microalgae and are most often harvested wild from the ocean.
- Fish Farming
- The principal form of aquaculture, while other methods may fall under mariculture.
- Involves raising fish commercially in tanks or enclosures, usually for food.
- Fish species raised by fish farms include salmon, catfish, tilapia, cod, carp, trout, and others.
- Increasing demands on wild by commercial fishing operations have caused widespread overfishing.
- Offers an alternative solution to the increasing market demand for fish and fish protein.
- Freshwater Prawn Farming
- An aquaculture business designed to raise and produce freshwater prawn or shrimp for human consumption.
- Shares many characteristics with, and many of the same problems as, marine shrimp farming.
- Unique problems are introduced by the development life cycle of the main species (the giant river prawn, Macrobrachium rosenbergiz).
- Integrated Multi-Trophic Aquaculture
- A practice in which the by- products (wastes) from one species are recycled to become inputs ( fertilisers, food) for another.
- Fed aquaculture (e.g. fish, shrimp) is combined with inorganic extractive (e.g. seaweed) and organic extractive (e.g. shellfish) aquaculture to create balanced systems for environmental sustainability (biomitigation), economic stability (product diversification and risk reduction), and social acceptability (better management practices).
- Mariculture
- a specialised branch of aquaculture involving the cultivation of Marine Organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater.
- the farming of marine fish, prawns, or oysters in saltwater ponds.
- Non-food products produced by mariculture include Fish Meal, nutrient agar, jewelleries ( e.g. cultured pearls), and cosmetics.
- Shrimp Farming
- an aquaculture for the cultivation of marine shrimp for human consumption.
- Commercial shrimp farming began in the 1970s, and production grew steeply, particularly to match the market demands of the US, Japan, and Western Europe.
- About 75°/o of farmed shrimp is produced in Asia, in particular in China and Thailand.
- The other 25% is produced mainly in Latin America, where Brazil is the largest producer.
- The largest exporting nation is Thailand.
- Shrimp farming on modern lines is being done in Andhra Pradesh (Nellore District), a state of India (see Blue Revolution)
Strategies for the Fisheries Development
- Under the Jawahar Rozgar Yojna, village panchayats have been authorised to carry out fisheries development programmes in respective villages.
- Under the programme of Development of Model Fishermen Villages, basic civic amenities such as housing, drinking water and construction of community halls for fishermen villages are provided.
- Brackish Fish Farmers Development Agencies (BFDA) functioning in the coastal areas of the country is providing a package of technical, financial and extension support to shrimp farmers.
- Insurance facilities have been extended to fishermen for the insurance and security of their life.
- The government is collecting data on the micro-climates of various water bodies to promote fisheries in the country.
Problems and Prospects
- Most of the fishermen are poor. They are not able to purchase good equipment to improve the harvest of fish.
- The water bodies (rivers, lakes, ponds, and coastal areas of the seas) are increasingly polluted.
- The area of paddy fields in which fisheries used to be kept is also decreasing under the impact of fast growth of Population, industrialisation, and Urbanisation.
- Adequate information about the environment of water-bodies (ponds, lakes, rivers, and sea is not available).
- Unpredictable nature of monsoon as a result of which the inland fisheries suffer adversely.
- Problem of Marketing, storage, and transportation.
- Inadequacy of research and extension service facilities.
- There is need of Pink Revolution (Prawns) in the coastal regions of the country.
BLUE REVOLUTION IN INDIA
- the adoption of a package programme to increase the production of fish and marine products.
- started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency (FFDA).
- Subsequently, the Brakish Water Fish Farms Development Agency were set up to develop aquaculture.
- brought improvement in aquaculture by adopting new techniques of fish breeding, fish rearing, fish marketing, and fish export.
- tremendous increase in the production of shrimp. Andhra Pradesh and Tamil Nadu have developed shrimp in a big way.
- The Nellore District of Andhra Pradesh is known as the ‘Shrimp Capital of India’.
- There are more than 1800 species of fish found in the sea and inland waters of India, of which a very few are commercially important.
- important sea fish include catfish, herring, mackerels, perches, mullets, Indian salmon, shell fish, eels, anchovies, and dorab.
- the main fresh water fish include catfish, loaches, perches, eels, herrings, feather backs, mullets, carps, prawns, murrels, and anchovies.
- Marine fisheries contribute about 50 per cent of the total fish production of the country.
- Kerala is the leading producer followed by Maharashtra, Karnataka, Gujarat, and Goa.
- The fishing season extends from September to March.
- The higher fish production in the Arabian Sea is due to the broader continental shelf.
- The important fish varieties include sardines, mackerel and prawn.
- The East Coast contributes about 28 per cent of the total production of marine fish in the country.
- The fishing activity along the East coast is mainly carried on from Rameswaram in the south to Ganjam in the north, with fishing season from September to April along the Coromandal Coast.
- The National Fisheries Development Board has been set up to realize the untapped potential of fishery sector with the application of modern tools of research and development including Biotechnology.
Different Forms of Marriage Practiced in Ancient India
1. | Brahma | Duly dowered girl to a man of the same class | ||||
2. | Daiva | Father gives daughter to a sacrificial priest as a part of his fee | ||||
3. | Arsa | A token bride price of a cow & a bull is given in place of the dowry | ||||
4. | Prajapatya | Father gives girl without dowry & without demanding the bride price | ||||
5. | Gandharva | Love Marriage | ||||
6. | Asura | In which bride was bought from her father | ||||
7. | Rakshasa | Marriage by capture, practiced especially by warriors. | ||||
8. | Paishacha | Marriage by seduction | ||||
Daiva marriage was considered ideal while paisacha the worst. |
Emergence of Socialism-
- Emergence of socialism in the 1920s in the nationalist ranks
- JL Nehru and SC Bose
- Raised the question of internal class oppression by capitalists and landlords
- MN Roy became the first Indian to be elected to the leadership of the Communist International
- Muzaffer Ahmed and SA Dange were tried in the Kanpur Conspiracy Case
- 1925: Communist Party of India was formed
- All India Trade Union Congress
- Various Strikes: Bombay textile mills, Jamshedpur, Kharagpur
- Bardoli Satyagraha (1928)
- Peasants under the leadership of Sardar Patel organized no tax campaign
- Indian Youth were becoming active
- First All Bengal Conference of Students held in 1928 presided by JL Nehru
- Hindustan Republican Association: 1924
- Kakori Conspiracy Case (1925)
- Four, including Ram Prasad Bismil and Ashfaqulla Khan were hanged.
- Hindustan Socialist Republican Association (1928)
- On 17th December 1928, Bhagat Singh, Azad and Rajguru assassinated Saunders
- Bhagat Singh and BK Dutt threw bomb in the Central Legislative Assembly on 8 April 1929 to let the people know of their changed political objectives
- Chittagong Armoury Raid: 1030, Surya Sen
- Participation of young women