Pillai started his drama troupe called
Viswa Kerala Kala Samithi in 1952 under the presence of acclaimed poet
Vallathol Narayana Menon.
Manushyan meaning
Human was the first drama staged by Viswa Kerala Kala Samithi. Pillai and his family members performed in all his dramas making it a family affair. The initial dramas he had written were during his stint in INA at the age of 24 which upheld patriotism and national pride.
Tantia Tope was the first play written and directed by him in which he played the role of thantia thope. The play was written in English. It was translated into various languages and staged in military camps in INA.
Qurbani was the second drama he had written under Netaji's instruction, which was staged in front of Netaji
Subhas Chandra Bose while in Ragoon camp. Later while working as a teacher for a short stint in Kililoor Sanskrit school, Kottayam in 1946 he had written a one-act play:
Aa Ottu Company Mathiyarunnu for the schools annual day and was staged by students of the school under his direction. All his plays addressed the social inequality, injustice, corruption and hypocrisy. His wife Chinnamma, sister
G.Omana (winner of Kerala state award for best actress – theatre) played in his plays. His troupe
Viswa Kerala Kala Samithi staged his plays until 2005, by his son
Vijayaraghavan and son-in-law Rajendra Babu. Some of his plays are
Easwaran Arrestil,
Kapalika,
Supreme Court,
Prethalokam,
Gorilla,
Folydol,
Kanakku Chembakaraman and
Cross Belt. His plays
Kapalika and
Cross Belt were remade into movies. Pillai also acted in movies in Malayalam,
Kapalika,
Godfather and
Naadody Godfather was also remade into
Telugu and
Tamil where he acted in the same role in all these languages. A stone monument made of Krishnashila stone depicting a theatre is built at his residence
Olassa,
Kottayam in 1996. Every year, a gathering of family members and admirers lights lamp and shower flowers at the monument on 14 November, the day of his death. Cultural personalities are honored and young talents are awarded by NN Pillai foundation formed by his son Vijayaraghavan and Daya Samskarika Vedhi, Kodayampady, Kottayam on the same day. Every year since 2012, a fortnight long drama festival is conducted by Chorus arts society Maniyattu, Kasargod district in November in remembrance of Pillai. The festival ends with honoring the best play, playwright, actor and actress. == Awards and accolades ==