Narasimhan joined the Indian independence movement in 1920 at the age of 11 and was imprisoned for his participation in the 1930 Vedaranyam Salt Satyagraha.
[1] He was re-elected to the Lok Sabha in 1957 by a close margin of 367 votes over his nearest rival G. D. Naidu[2] and served till 1962 when he lost his seat to K. Rajaram of the Dravida Munnetra Kazhagam.
[3] He stayed on in the Indian National Congress even after his father had quit the party and had allied with its opponents quitting the Indian National Congress and joining the Swatantra Party only in the 1960s.
Narasimhan was at Rajaji's bedside when he died in his hospital bed on 27 December 1972.
Narasimhan also served as Chairman, Gandhi ashram, Tiruchengode and as a member of the Tamil Nadu Prohibition Committee.