Once Upon A Time In Mumbai Dobaara is a sequel of Once Upon A Time In Mumbai

Ajay Rathore is a no-nonsense police officer from Mumbai Crime Branch. Long time ago his elder brother was killed by terrorists which caused him to quit his medical studies and join Indian Police Service. He is a great admirer of Pakistan-based ghazal singer Gulfam Hassan. During one of Hassan’s concerts, they meet for the first time and become great friends. Meanwhile, Ajay’s investigation into the Pakistan-supported cross-border terrorism takes him to Rajasthan and reveals an unsettling truth about someone close to his heart.

Naina is a very serious girl with a very serious life. But one day, her soul is awakened by the happy-go-lucky Aman, who teaches her that life is meant to be lived. Naturally, she falls in love with him. But Aman is harboring a secret that keeps him from reciprocating Naina’s love. But he cannot stand having her live a life without love, so he sets off on a mission to fill her life with someone else’s love – someone she already knows…