Orthodox Bishnupriyas hold that the language was carried over to Bishnupriya Manipuri by some immigrants from Dvārakā and Hastinapura just after the Mahabharata war. It is further said that these immigrants were led by Babhruvahana, the son of Chitrangada and Arjuna, the third Pandava. Some scholars and history writers came to support the Mahabharata origin of Bishnupriya Manipuri from observation of the morphology, the vocables, and the phonology of the Bishnupriya Manipuri language. They hold that BPM is highly influenced by Sanskrit and Maharastri as well as Sauraseni Prakrits. KP Sinha, who has done considerable research on Bishnupriya Manipuri, disagrees with the theory and is of the opinion that the language was originated through Magadhi Prakrita. It is found from his observations that the language has retained dominant characteristics of Magadhi. According to Sinha, pronouns and declensional and conjugational endings seem to be same as or closely related to those of Maithili, Oriya, Bengali. These forms of Oriya, Bengali are, on their parts, derived from Magadhi Apabhramsa coming from the Magadhi Prakrita.