Saha won in Tehatta Assembly constituency representing the All India Trinamool Congress in the 2021 West Bengal Legislative Assembly election. He polled 97,848 votes and defeated his nearest rival, Ashutosh Paul of the
Bharatiya Janata Party, by a margin of 6,915 votes. Earlier, he had first become an MLA winning the
2016 West Bengal Legislative Assembly election in
Palashipara Assembly constituency on the Trinamool Congress ticket, defeating
SM Sadi of the
Communist Party of India (Marxist) by a margin of 5,559 votes. In April 2023,
Central Bureau of Investigation officials raided Saha's house in connection with an alleged corruption case and in June 2024, he was summoned to the CBI's Nizam Palace office, in Kolkata. == Death ==