Director: Sujoy Ghosh
Cast: Amitabh Bachchan as Badal Gupta, Tapsee Pannu as Naina Sethi, Tony Luke as Arjun Joseph, Amrita Singh as Rani Kaul, and Manav as Jimmy Punjabi (Naina's lawyer)
Badla tells the story of one Naina Sethi who is a noted young entrepreneur who is implicated in the murder case of her secret lover Arjun. Naina Sethi has everything. A successful career - she was recently named Young Businessperson of the Year - and leads a happy life with her husband a son. Fearing for her reputation and career, she turns to her lawyer Jimmy Punjabi who hires her the unbeatable Badal Gupta to come out of this unscathed.
Badal Gupta means business and he immediately comes into action. He meets Naina Sethi in the hotel she is home-arrested by the police and tells her that they have very less time as the police have a witness. He asks her to tell him every detail within three hours so that he can help her avoid the impending arrest and then destroy the case.
Naina describes him of what happened on that fateful day. She is blackmailed by an unknown person who knows about her affair with Arjun. She was asked to come to a hotel in a remote location with Arjun and deliver the money. Naina goes there with Arjun where in the hotel room she and Arjun were assaulted by an unknown person and the door of their room was locked from the outside. But Badal Gupta doesn't buy this story. He asks her to come up with the truth. What's the real truth? Did Naina kill Arjun? How and if she escapes from the case form the rest of the story.
Badla received high critical acclaim and went on to become a blockbuster at the box office. Amitabh's performance is termed as stellar and Tapsee is praised for her understated but intense performance. Sujoy Ghosh's direction and the way he used the gender reversal technique while translating this Spanish thriller to Indian screen were hailed as a master class. Badal also won Pycker India's Best Movie of the Week honor on its release.