Sankar Guru is a 1987 Indian Tamil-language action film, directed by L. Raja and produced by M. Saravanan, M. Balasubramanian and M. S. Guhan via AVM Productions.

However, the fruit stall owner, Sankarguru / Babu, becomes a reluctant hero when he intervenes in a harrowing incident involving the youngest brother, Nagaraju, who attempts to molest a young school teacher, Rekha.

Aware of Sankarguru's actions, the second eldest brother Ethiraj schemes to teach him a lesson by framing him for selling illegal arrack.

Learning of this tragedy, Sankarguru / Babu rushes to the scene in a fit of rage, overpowering the brothers and delivering them to the town's police station.

The remainder of the story revolves around Sankarguru's determination to fulfill his promise to the young girl, as he navigates the corrupt underworld and seeks justice for her family.

Instead, AVM borrowed two scenes from that film and created a new story, titled Sankar Guru in Tamil and Chinnari Devatha in Telugu.