The formation of the party was the culmination of more than 15 years of struggle of its parent mass organization, Krishak Mukti Sangram Samiti (KMSS), for land rights, farmers rights, ecological conservation and protection of lives and livelihoods of the working classes of Assam. In the wake of the statewide Anti-CAA movement where KMSS and 70 other organizations played a leading role, Akhil Gogoi, the then Chief advisor of KMSS and many others were arrested under draconian laws like the UAPA by the ruling BJP government, A new party was proposed on 2 October 2020 (when Gogoi was still in jail) with an aim to overthrow the BJP from power in Assam and provide a progressive regional alternative to the people of the state. Later, Raijor Dal was formally launched on 8 January 2021 at the 1st Moran convention. The party's stated political ideology is progressive sub-nationalism which encapsulates ideas of federalism, equal rights, self-reliance and scientific temper.
The party was officially announced by filmmaker Jahnu Baruah who had extended his support along with Assamese film actress Zerifa Wahid and lawyer Arup Borbora.[8][9]
