The first written record of Jasrota is probably that found in the "Ma'asir-ul-Umara". The state was bifurcated following a dispute between the twin sons of Kailesh Dev, who had been ruling in 1320. Pratap Dev and Sangram Dev both sought to succeed their father but it was impossible to prove which brother was the older. Eventually, the rulers of neighbouring hill states negotiated a settlement, leading the lands being divided and Sangram becoming the first ruler of the new state of Lakhanpur in 1350.