Prithu (Assamese King)

The immediate history of Kamrupa following the extinction of the indigenous Pala dynasty remains uncertain, particularly with regard to the identities of the rulers.^[1][2] The undated Kamauli copper plate inscription, generally assigned to c. 1139 C.E., indicates that Kamrupa had come under the suzerainty of the Pala Empire of Gauda (Bengal); it records Vaidyadeva, in the fourth year of his rule, as governing the province under Kumarapala after having suppressed a rebellion by Tingyadeva, the previous governor who had declared independence.^[2][3]

The Tejpur copper-plates of Vallabhadeva, dated to 1185 C.E., provides a list of three rulers—Rayarideva Trailokyasimha, Udayakarna Nishankasimha, and Vallabhadeva Srivallabha—in succession, from the lineage of one Bhaskara.^[1][2][3] Although historians initially questioned the relevance of the record because Kamrupa is not explicitly named and the characteristic elephant seal is missing, the donated land tracts mentioned in the inscription have since been identified within Kamrupa proper.^[2] Contemporary Pala inscriptions from these decades and literary sources record periodic expeditions against Kamrupa, pointing to tumultuous times, but the names of the rulers are left unmentioned.^[1][2] In addition, the two-line Kanaibarasi rock inscription briefly records how in March 1206, the Turks perished upon reaching Kamrupa while a 1227 CE inscription from Gachtal records an order to drive an entrapped brigade of 3,000 Mleccha soldiers from Bengal into the monsoon-flooded rivers.^[4]

In the Tabaqat-i Nasiri, Minhaj-i Siraj Juzjani credits his patron Nasir ud din Mahmud Shah with defeating one Bartū/Britū—described as responsible for the deaths of over a million Muslims—while suppressing rebels in Awadh under Iltutmish;^[1] H. G. Raverty, who translated the work into English, proposed emending the name to Prithu but observed that no other source described such a King.^[5] After these campaigns in Awadh, Juzjani records Nasir ud din to have marched to Lakhnauti against Ghiyās ud-Dīn Iwaz Khalji, the regional governor of Bengal who had declared independence, in 1227; however, elsewhere in the chronicle, while recounting Iwaz's career, he adds that Nasir ud din also waged war against Kamrupa alongside Bengal.^[1]

A couple of decades before Nasir ud din's campaigns, Juzjani recorded how the King of Kamrupa had inflicted heavy losses on the already depleted army of Bakhtiyar Khalji following his disastrous Tibet campaign.^[6] While en route to Tibet, Bakhtiyar crossed a major river in Kamrupa via a stone bridge^[a] and realizing the importance of the structure, even left two officers to guard it.^[1][6] By the time he returned, however, the bridge had been partially dismantled by locals after the guards developed discord and abandoned their posts; Bakhtiyar’s men were thus stranded and took refuge in a nearby temple while attempting to improvise a crossing.^[1][6] In the meanwhile, the King mobilized his subjects to besiege the temple, forcing them to dash toward the river and attempt crossing it immediately; most perished in the water, while Bakhtiyar escaped with only a small number of horsemen.^[1][6]

Wolseley Haig, writing in The Cambridge History of India, suggested that the figure of Britū/Prithu might correspond to the contemporaneous King of Kamrupa.^[7] K. L. Barua supported Haig's tentative identification, arguing that the contemporary history of Awadh records no rebel of comparable prominence and suggesting that Juzjani had likely erred in his chronology by placing the campaign against Prithu in Nasir ud din's days at Awadh.^[8] He further adduced evidence from the Yogini Tantra, a 16th- or 17th-century tantric text from the region that mentions a Shaiva king named Jalpeśvar ruling Kamrupa and constructing a eponymous temple; from local traditions of early nineteenth century, recorded by Francis Buchanan, that attributed the ruins of the fort city at Bhitargarh—situated about twenty-five kilometres from the temple—to a King Prithu;^[b][c] and from the Kamrupa Buranji that explicitly equates Jalpeśvar with Prithu.^[8]

In contrast, Nalini Kanta Bhattasali rejected such an identification and saw no reason to doubt that Prithu was a rebel based out of Awadh.^[1] He relied on the Tejpur copper-plates—that had been rejected by Barua on grounds of there being too many rulers (four) in the span of forty-five years since Vaidyadeva—to propose that the ruler of Kamrup, contemporary to Bakhtiyar, must have been some successor of Vallabhadeva.^[1][d] Likewise, Dineshchandra Sircar found no reason to question Juzjani’s chronology on the basis of later local traditions; he agreed that a successor of Vallabhadeva must have repelled Bakhtiyar though, given the absence of any named ruler in the Kanaibarasi inscription and the likely political fragmentation of Kamarupa at the time, it was probable that other regional rulers participated in the resistance.^[10]

With the rise of Bharatiya Janata Party in the state, Prithu—similar to Lachit Borphukan—has been inducted into a Hindu Nationalist framework as an Assamese Hindu icon who defended the territory against perceived Muslim aggression.^[11] In March 2026, the Government of Assam announced its decision to name a flyover in the state capital after Prithu.^[11] Akhil Bharatiya Itihas Sankalan Yojana (ABISY), an affiliate of the Rashtriya Swayamsevak Sangh that promotes reinterpretations of Indian history from a Hindu Nationalist perspective, particularly by instrumentalizing local folklores, has played a significant role in popularizing the legend of Prithu.^[11][12] Raktim Patar, a historian at Jawaharlal Nehru University, has been associated with these efforts, including organizing national seminars on the subject and authoring monographs dedicated to Prithu.^[11]