The Shunga Empire (IAST: ) was a ruling entity centred around Magadha and controlled most of the northern Indian subcontinent from around 187 to 75 BCE. The dynasty was established by Pushyamitra, after taking the throne of Magadha from the Mauryas. The Shunga empire's capital was Pataliputra, but later emperors such as Bhagabhadra also held court at Besnagar (modern Vidisha) in eastern Malwa. This dynasty is also responsible for successfully fighting and resisting the Greeks in Shunga–Greek War.

Pushyamitra ruled for 36 years and was succeeded by his son Agnimitra. There were ten Shunga rulers. However, after the death of Agnimitra, the second king of the dynasty, the empire rapidly disintegrated:K.A. Nilkantha Shastri (1970), A Comprehensive History of India: Volume 2, p.108: "Soon after Agnimitra there was no 'Sunga empire'." inscriptions and coins indicate that much of northern and central India consisted of small kingdoms and city-states that were independent of any Shunga hegemony.Bhandare, Shailendra. "Numismatics and History: The Maurya-Gupta Interlude in the Gangetic Plain". in Between the Empires: Society in India, 300 to 400, ed. Patrick Olivelle (2006), p.96 The dynasty is noted for its numerous wars with both foreign and indigenous powers. They fought the Kalinga, the Satavahana dynasty, the Indo-Greek kingdom and possibly the Panchalas and Mitras of Mathura.

Art, education, philosophy, and other forms of learning flowered during this period, including small terracotta images, larger stone sculptures, and architectural monuments such as the stupa at Bharhut, and the renowned Great Stupa at Sanchi. The Shunga rulers helped to establish the tradition of royal sponsorship of learning and art. The script used by the empire was a variant of Brahmi script and was used to write Sanskrit.

The Shungas were important patrons of culture at a time when some of the most important developments in Hindu thought were taking place. Patanjali's Mahābhāṣya was composed in this period. Artistry also progressed with the rise of the Mathura art style.

The last of the Shunga emperors was Devabhuti (83–73 BCE). He was assassinated by his minister Vasudeva Kanva and was said to have been overfond of the company of women. The Kanva dynasty succeeded the Shungas around 73 BCE.

Name The name "Shunga" has only been used for convenience to designate the historical polity now generally described as "Shunga empire", or the historical period known as the "Shunga period", which follows the fall of the Maurya Empire. The term appears in a single epigraphic inscription in Bharhut, in which a dedication to the Buddhist Bharhut stupa is said to have been made "at the time of the Suga kings" (Suganam raje), with no indication as to whom these "Suga kings" might be. Other broadly contemporary inscriptions, such as the Heliodorus pillar inscription, are only assumed to relate to Shunga rulers. The Ayodhya Inscription of Dhana mentions a ruler named Pushyamitra, but does not mention the name "Shunga".

The Bharut epigraph appears on a pillar of the gateway of the stupa, and mentions its erection "during the rule of the Sugas, by Vatsiputra Dhanabhuti". The expression used (Suganam raje, Brahmi script: 𑀲𑀼𑀕𑀦𑀁 𑀭𑀚𑁂), may mean "during the rule of the Sugas [Shungas]", although not without ambiguity as it could also be "during the rule of the Sughanas", a northern Buddhist kingdom. There is no other instance of the name "Shunga" in the epigraphical record of India. The unique inscription reads:

Dhanabhuti was making a major dedication to a Buddhist monument, Bharhut, whereas the historical "Shungas" are known to have been Hindu monarchs, which would suggest that Dhanabhuti himself may not have been a member of the Shunga dynasty. Neither is he known from "Shunga" regnal lists. The mention "in the reign of the Shungas" also suggests that he was not himself a Shunga ruler, only that he may have been a tributary of the Shungas, or a ruler in a neighbouring territory, such as Kosala or Panchala.

The name "Sunga" or "Shunga" is also used in the Vishnu Purana, the date of which is contested, to designate the dynasty of kings starting with Pushyamitra , and ending with Devabhuti circa 75 BCE. According to the Vishnu Purana:

Origins

According to historical reconstructions, the Shunga dynasty was established in 184 BCE, about 50 years after Ashoka's death, when the emperor Brihadratha Maurya, the last ruler of the Maurya Empire, was assassinated by his Senānī or commander-in-chief, Pushyamitra,"Pushyamitra is said in the Puranas to have been the senānī or army-commander of the last Maurya emperor Brihadratha" The Yuga Purana, Mitchener, 2002. while he was reviewing the Guard of Honour of his forces. Pushyamitra then ascended the throne.Between the Empires: Society in India 300 BCE to 400 CE By Patrick Olivelle, Oxford University Press, Page 147-152

Pushyamitra became the ruler of Magadha and neighbouring territories. His realm essentially covered the central parts of the old Mauryan Empire. The Shunga definitely had control of the central city of Ayodhya in northern central India, as is proved by the Dhanadeva-Ayodhya inscription.Ancient Indian History and Civilization, Sailendra Nath Sen, New Age International, 1999, p.169 However, the city of Mathura further west never seems to have been under the direct control of the Shungas, as no archaeological evidence of a Shunga presence has ever been found in Mathura. On the contrary, according to the Yavanarajya inscription, Mathura was probably under the control of Indo-Greeks from some time between 180 BCE and 100 BCE, and remained so as late as 70 BCE.History of Early Stone Sculpture at Mathura: Ca. 150 BCE - 100 CE, Sonya Rhie Quintanilla, BRILL, 2007, p.8-10

Some ancient sources however claim a greater extent for the Shunga empire: the Asokavadana account of the Divyavadana claims that the Shungas sent an army to persecute Buddhist monks as far as Sakala (Sialkot) in the Punjab region in the northwest:

Also, the Malavikagnimitra claims that the empire of Pushyamitra extended to the Narmada River in the south. They may also have controlled the city of Ujjain. Meanwhile, Kabul and much of the Punjab passed into the hands of the Indo-Greeks and the Deccan Plateau to the Satavahana dynasty.

Pushyamitra died after ruling for 36 years (187–151 BCE). He was succeeded by son Agnimitra. This prince is the hero of a famous drama by one of India's greatest playwrights, Kālidāsa. Agnimitra was viceroy of Vidisha when the story takes place.

The power of the Shungas gradually weakened. It is said that there were ten Shunga emperors. The Shungas were succeeded by the Kanva dynasty around 73 BCE.

Decline of Buddhism

Accounts of persecution

Following the Mauryans, the first Sunga emperor, a Brahmin named Pushyamitra, is believed by some historians to have persecuted Buddhists and contributed to a resurgence of Brahmanism that forced Buddhism outwards to Kashmir, Gandhara and Bactria.Sarvastivada pg 38–39 Buddhist scripture such as the Ashokavadana account of the Divyavadana and ancient Tibetan historian Taranatha have written about persecution of Buddhists. Pushyamitra is said to have burned down Buddhist monasteries, destroyed stupas, massacred Buddhist monks and put rewards on their heads, but some consider these stories as probable exaggerations.A Journey Through India's Past Chandra Mauli Mani, Northern Book Centre, 2005, p.38

Pushyamitra is known to have revived the supremacy of the Bramahnical religion and reestablished animal sacrifices (Yajnas) that had been prohibited by Ashoka. However, in the Harshacharita of Banabhatta, Pushyamitra is referred to as an Anarya (non-Aryan).

Accounts against persecution

Later Shunga emperors were seen as amenable to Buddhism and as having contributed to the building of the stupa at Bharhut.Akira Hirakawa, Paul Groner, "A History of Indian Buddhism: From Sakyamuni to Early Mahayana", Motilal Banarsidass Publ., 1996, pg 223 During his reign the Buddhist monuments of Bharhut and Sanchi were renovated and further improved. There is enough evidence to show that Pushyamitra patronised Buddhist art.Sir john Marshall, "A Guide to Sanchi", 1918 However, given the rather decentralised and fragmentary nature of the Shunga state, with many cities actually issuing their own coinage, as well as the relative dislike of the Shungas for the Buddhist religion, some authors argue that the constructions of that period in Sanchi for example cannot really be called "Shunga". They were not the result of royal sponsorship, in contrast with what happened during the Mauryas, and most of the dedications at Sanchi were private or collective, rather than the result of royal patronage.Buddhist Landscapes in Central India: Sanchi Hill and Archaeologies of Religious and Social Change, c. Third Century BC to Fifth Century AD Julia Shaw, Routledge, 2016 p.58  

Some writers believe that Brahmanism competed in political and spiritual realm with Buddhism in the Gangetic plains. Buddhism flourished in the realms of the Bactrian kings.

Some Indian scholars are of the opinion that the orthodox Shunga emperors were not intolerant towards Buddhism and that Buddhism prospered during the time of the Shunga emperors. The existence of Buddhism in Bengal in the Shunga period can also be inferred from a terracotta tablet that was found at Tamralipti and is on exhibit at the Asutosh Museum in Kolkata.

Royal dedications Two dedications by a king named Brahmamitra as well as the monarch Indragnimitra are recorded at the Mahabodhi Temple in Bodh Gaya. Some may claim these show Shunga support for Buddhism. These kings, however, are essentially unknown, and do not form a part of the Shunga recorded genealogy. They are thought to be post-Ashokan and to belong to the period of Shunga rule.Asoka, Mookerji Radhakumud, Motilal Banarsidass Publishers, 1962 p.152Between the Empires: Society in India 300 BCE to 400 CE Patrick Olivelle, Oxford University Press, 2006 p.58-59 A Brahmamitra is known otherwise as a local ruler of Mathura, but Indragnimitra is unknown, and according to some authors, Indragnimitra is in fact not even mentioned as a king in the actual inscription.Between the Empires: Society in India 300 BCE to 400 CE Patrick Olivelle, Oxford University Press, 2006 p.75 An inscription at Bodh Gaya at the Mahabodhi Temple records the construction of the temple as follows: "The gift of Nagadevi the wife of King Brahmamitra." Another inscription reads: "The gift of Kurangi, the mother of living sons and the wife of King Indragnimitra, son of Kosiki. The gift also of Srima of the royal palace shrine."(Barua, B.M., 'Old Buddhist Shrines at Bodh-Gaya Inscriptions)

Cunningham has regretted the loss of the latter part of these important records. As regards the first coping inscription, he has found traces of eleven Brahmi letters after "Kuramgiye danam", the first nine of which read "rajapasada-cetika sa". Bloch reads these nine letters as "raja-pasada-cetikasa" and translates this expression in relation to the preceding words: "(the gift of Kurangi, the wife of Indragnimitra and the mother of living sons), "to the caitya (cetika) of the noble temple", taking the word raja before pasada as an epithet on ornans, distinguishing the temple as a particularly large and stately building similar to such expressions as rajahastin 'a noble elephant', rajahamsa 'a goose' (as distinguished from hamsa 'a duck'), etc." Cunningham has translated the expression "the royal palace, the caitya", suggesting that "the mention of the raja-pasada would seem to connect the donor with the king's family." Luders doubtfully suggests "to the king's temple" as a rendering of "raja-pasada-cetikasa."

Shunga period contributions in Sanchi