Kamarupi Prakrit is the postulated Middle Indo-Aryan Prakrit language used in ancient Kamarupa. This language has been derived from Gauda-Kamarupi Prakrit and the historical ancestor of the Kamatapuri
Like other inscriptions from Kingdom of Kamarupa which were written in Sanskrit, the Nidhanpur inscription of Bhaskar Varman shows "mistakes" and have few Apabhramsa terms due to influence of a local Apabhramsa.