Rajanadai is a 1989 Indian Tamil-language action film directed by S. A. Chandrasekhar.
The movie stars Vijayakanth as an honest C.I.D. inspector, his wife Seetha (played by Seetha), and their daughter Shamili. The cast also includes Gautami, Vidhyashree, and Rekha in a supporting role.
The plot revolves around Vijayakanth's pursuit of a dangerous criminal named Tiger Kaali, whom he befriends without knowing her connection to him. Seetha's illness and subsequent death at the hands of Kaali fuels his determination to capture the fugitive.
Rajanadai was released on 28 October 1989 and was later remade in Hindi by Chandrasekhar as Jeevan Ki Shatranj (1993) and in Bengali Bangladesh as Baba in (2003).