Indian auteur Sriram Raghavan is developing a new thriller for Matchbox Shots set in the tonal zone of his 2007 film “Johnny Gaddaar,” as the Mumbai production house grows its slate on the strength of the global Netflix success of war series “Operation Safed Sagar.” “Johnny Gaddaar” was a twist-laden neo-noir heist thriller that marked Neil Nitin Mukesh’s screen debut alongside Dharmendra, and has since grown into a cult favorite. Related Stories “I am personally working on a couple of subjects with them,” Raghavan tells Variety. “One is a true crime sort of thing which I am sort of adapting…