[1] Mahato has master's degree (MA) in Political science, history & Bengali.
After completing his education, he worked as a teacher (subsequently as Headmaster) in Srirampur High School in Joypur.
[1] He was a member of the 15th Lok Sabha from the Purulia elected on All India Forward Bloc political party.
He joined Bharatiya Janata Party and was elected as a member of the West Bengal Legislative Assembly from Joypur (constituency).
He defeated Phanibhushan Kumar of Congress by 12,102 votes in 2021 West Bengal Assembly election.