 He was eventually offered a place at Bihar college of engineering (today's National Institute of Technology, Patna) in Patna.Dubey left his engineering studies to join the Quit India Movement in 1942.Dubey was a member of Bihar Legislative Assembly for five periods as a representative of the Bermo constituency, being 1952–57, 1962–67,
 1967–69, 1969–72, 1972–77.