Tumko Na Bhool Paayenge is a 2002 bollywood action thriller film directed by Pankaj Parashar. The films stars Salman Khan, Sushmita Sen and Dia Mirza in the lead roles. It was remade in Bengali as It Was Raining That Night 2005.
The real Veer Arbaaz Khan was a soldier who died in the line of duty. After immersing his ashes, he found the bulletridden body of an unknown man. When he realized that this man had no memories of his past, he told him that he is Veer amp concoct a past for him, because they feel the need to have a son. Veer decides to go on a quest to find his real identity. He goes to Mumbai to find that both police and goons are baying for his blood. He meets a teenager who calls him Ali bhaiyya brother, but the teenager dies while trying to save Ali from an assassin. The hero does not see the face of the assassin, but assumes that his name is Ali. He gets visions of a girl Sushmita Sen whom he has never seen.The mystery starts unwinding when he meets a guy named Inder Inder Kumar. As Ali starts getting his past memories, it is confirmed that his name is indeed Ali. Ali amp the teenager were orphaned brothers, while Inder was Alis friend. An old man named Rahim Chacha Alok Nath was their guardian. The mysterious girl Ali saw was Mehak, his love. Ali and Inder had won medals for shooting during many contests, although Ali was always the better. The marksmanship skills is noticed by the Joint Commissioner of Mumbai Crime Branch, Arvind Raj Mukesh Rishi, who makes a proposal to them masquerade as goons of a gang, kill goons of their rival gang amp trick both the gangs to destroy each other in gang wars. Ali refuses flatly, but after some goons kill Rahim Chacha, Ali amp Inder decide to take the offer. ........
Source: Wikipedia