He is immortal) is a 1958 Indian Tamil language political drama film produced and written by Nagercoil S. Nagarajan, and directed by S. Balachander.

Avan Amaran was produced and written by Nagercoil S. Nagarajan under People's Films, and directed by S. Balachander shot at the Newtone, Paramount, and Revathi studios in Chennai.

[5] The song "Kaalanaa Minjaadhaiyaa" is based on "Ramayya Vastavayya" from the Hindi film Shree 420 (1955), and "Vaanmadhi Nee Arivaai" is based on "Jaye To Jaye Kahaan" from another Hindi film, Taxi Driver (1954).

[7] As it was a leftist-oriented film there were more than 72 cuts ordered by the censor board and on appeal it was reduced to 52 and after screening it to the then prime minister Jawaharlal Nehru.

When released there was a severe power cut at Tamil Nadu, then Madras state, and theaters were allowed to run only one show.