I think the plot was almost there. Some of the key changes could have been: Leo godfathering Dilli from young age and when Dilli gets affected almost fatally because of Leo's father, Leo decides to leave the gang world after burning them all. Dilli also escapes which is unknown to Leo. On his way back, Leo understands the need for a family and starts a new family in Kashmir. The initial few scenes with cuts showing bondage between Leo and Dilli at young age . There was no need for Twin sister here in this story.