I'm assuming you're referring to the Tamil film "Ok Kanmani" (also known as "Ok Kanmani" or "Vegamovies")!

The story revolves around a young man named Prem (played by Simbu) who falls in love with a girl named Sharmila (played by Hansika Motwani). However, their relationship faces challenges due to various circumstances.

Released in 2015, "Ok Kanmani" is a Tamil romantic comedy film directed by Arivazhagan and produced by A. V. P. Asif. The movie stars Simbu and Hansika Motwani in the lead roles.