 It was in 1974, on the call of JP, he left his BSc Final Exams midway and went on to head the Patna City Student's Committee (Patna City Chhatra Sangharsh Samiti)

Nand Kishore Yadav was an active student leader.His association with the Jai Prakash movement landed him in jail for twenty three weeks during 1974-76.He was elected Corporator of Patna Municipal Corporation in 1978.