Explanation:

Sri Krishna Singh (Sri Babu) (1887–1961), known as Bihar Kesari, was the first Chief Minister of the Indian state of Bihar (1946–1961). Along with the nationalists Dr. Rajendra Prasad and Dr. Anugrah Narayan Sinha, Sinha is regarded among the Architects of Modern Bihar. Barring the war years (Second World War 1939–1945), Sinha was chief minister of Bihar from the time of the first Congress Ministry in 1937 until his death in 1961." It was Sinha who led Dalit’s entry into the Baidyanath Dham temple (Vaidyanath Temple, Deoghar), reflecting his commitment to the upliftment and social empowerment of dalits. Sinha was the first Chief Minister in the country to abolish zamindari system in Bihar. He underwent different terms of imprisonment for a total of about eight years in British India.