Vaathi

Vaathi () is a 2023 Indian period action drama film written and directed by Venky Atluri and produced by Naga Vamsi. The film was simultaneously shot in Tamil and Telugu languages, with the former version titled Sir. The film stars Dhanush, who plays the titular role of a school teacher, and Samyuktha. The music was composed by G. V. Prakash Kumar with cinematography by J. Yuvaraj and editing by Naveen Nooli. The film released on 17 February 2023 to mixed reviews and became one of the highest-grossing Tamil films of 2023, earning 105 crore worldwide. G. V. Prakash Kumar won the National Film Awards for Best Music Direction.

== Plot == Abhiram and his friends, studying at an educational institute run by Srinivas, are preparing for an engineering entrance examination. They come across an old box of cassette tapes containing mathematics classes with an accompanying receipt in the name of Kumar from Sozhavaram, from the year 2000. After inquiry, they discover that Kumar is the district magistrate of Kadapa, and later, Kumar discloses that the man in the video is Balamurugan 'Bala'.