It seems you're asking about "Singam 1" — the first film in the Singam franchise.

The sequels (Singam 2 and 3) went international, adding bigger budgets and crazier stunts, but they lost the soul of Nallur. The first film worked because the cage was small. When the lion finally broke out, it mattered.

The Conflict: His path crosses with Mayil Vaaganam (Prakash Raj), a powerful and ruthless extortionist in Chennai [6]. After being humiliated by Singam, Mayil uses his political influence to have Singam transferred to Chennai to terrorize him and his family [6, 8].

Durai Singam (Suriya): A fearless police officer known for his fierce "lion-like" persona and adherence to justice [4, 11].