 During these long sojourns he got a chance to read Marxist literature and joined the Communist Party of India although, until 1943 he remained a member of the All India Congress Committee.After independence, he became one of the top leaders of the Communist Party of India and leader of its legislature party until his death.It was under the able leadership of Karyanand Sharma that the Communist Party of India waged some important agrarian struggles in the 1950s, the most notable among them being Sathi farm struggles in Champaran.