Premji's son, K.P.A.C. Premachandran, entered the world of cinema with the legacy of acting inherited from his father. His mother is Arya Antharjanam. He was born in the Mullamangalam family. In 1965, he made his stage debut by acting in the play Yagashala during his school annual day. In 1967, he entered the professional theater scene through the play Tejovadham. Premachandran explored various facets of acting through G. Sankara Pillai's drama workshops. He then joined the K.P.A.C. drama troupe, where he delivered remarkable performances in N.N. Pillai's Manwantharangal and K.P.A.C.'s Bhagavan Kalumarnnu. He won the State Award for Best Actor for his performances in the plays Sahasrayogam, Sutradharan, and Othello. He was also notable in the plays Ashwamedham and Mudiayanaya Puthran.

He also acted in theater troupes like Kerala Theaters, Calicut Stage India, Vadakara Varada, Angamaly Manishada, Pratibha, and Thrissur Yamuna. Premachandran was also notable in television serials. He appeared in Thoppil Bhasi's Ente Neelakasham, in which Sukumaran and Shobha played the lead roles.

He passed away on March 25, 2003. His wife is Shanta, and they have a son named Naveen.