Kothamangalam Subbu (born Kothamangalam Subramanian, 10 November 1910 - 15 February 1974) was a poet, lyricist, author, actor and film director from Tamil Nadu, India. He wrote the cult classic Tamil novel Thillana Mohanambal and was awarded the Padma Shri. According to novelist Ashokamitran's memoirs, Subbu functioned as the No. 2 of the giant Gemini Studios of Chennai (formerly Madras), South India for over three decades and was a close associate of movie mogul S. S.