Vanthaan Vendraan (2011)

Arjun (Jiva) who is desperately trying to meet Ramana (Nandha) the most powerful don in Mumbai, finally achieves his goal. He narrates how he had met Anjali (Taapsee) and fell in love with her. But her businessman dad dies in a shoot-out on the streets of Mumbai and Ramana is the reason behind it. Now, Anjali has put a condition in front of Arjun that unless Ramana surrender before the police she will not get married to him and our hero is on the mission! But the real twist lies in the second half when we realize that Ramana and Arjun are siblings and the younger brother's secret agenda behind coming to Mumbai and getting close to the dreaded don.