In 1961 Bardhaman conference, he was elected as a State Secretariat member of the CPI. During the Sino-Indian War of 1962, arrest warrants were issued against Communist leaders. He evaded arrest by scaling the back walls of his house in Amta. At that time, he was made the Secretary of the Underground State Committee of the Marxist–Leninist fraction of the Party. He took a pseudonym "Prithwiraj", and organized movement for the release of political prisoners. As the mouthpiece "Swadhinata" was captured by the revisionist section of the party, he changed the Marxist periodical "Howrah Hitoishee" into "Deshhitoishee". "Deshhitoishee" was first published on 16 August 1963.