Naan Avanillai (1974 film)

Naan Avanillai is a 1974 Tamil language film starring Gemini Ganesan in the lead role of the protagonist. Produced by Ganesan himself, it was directed by K.Balachander. It was a remake of the 1962 Marathi language play To Mee Navhech English I Am Not Him, written by Pralhad K. Atre and performed by Prabhakar Panashikar. The film has been also made in Hindi as Woh Main Nahin. The Hindi film was released in 1974, starring Navin Nischol in the lead role of the protagonist.

Source: Wikipedia