C.I.D. Telugu ... is a 1965 Telugu Drama film directed by Tapi Chanakya and produced by Vijaya Pictures.
The story is about C.I.D. Ravi NTR. His father Chalapathi Gummadi was a gambler. While playing cards one night he confronts a thief. During the fight, he dies suddenly. The crime falls on him. He runs away to escape police and becomes an underground don Baba. His wife Parvathi Pandari Bai joins in a hospital as nurse and educates their only son Ravi. Ravi from Bombay comes to Hyderabad to investigate the case of Baba. Baba one day comes to know that C.I.D. Ravi is his son. How Ravi solves the case and proves his father as innocent is the whole story.
Source: Wikipedia