The war of 1971 gave birth to Bangladesh & two young orphans - Bikram (Ranveer Singh) and Bala (Arjun Kapoor).They became Calcutta's most loved and most powerful GUNDAY! Nandita (Priyanka Chopra), the beautiful cabaret dancer, walked in & they fell head over heels in love with her. And then entered ACP Satyajeet Sarkar (Irrfan Khan), a law for every outlaw and a counter force for Bikram and Bala.