You're referring to the popular Tamil movie "Vikram Vedha"!
The movie begins with Vikram, who heads a Special Task Force (STF) that's tasked with capturing Vedha, who's wanted for a series of crimes, including murder and extortion. However, things take a surprising turn when Vikram and Vedha engage in a cat-and-mouse game, with Vedha revealing that he's not just a ruthless gangster, but a family man with a compelling backstory. vikram vedha tamilyogi
Released in 2017, "Vikram Vedha" is a Tamil action thriller film written and directed by Pushkar-Gayathri. The movie stars Vijay and Fahadh Faasil in the lead roles, along with Suriyanarayanan, Maya, and Kathir. You're referring to the popular Tamil movie "Vikram Vedha"