Producer Siddharth Roy Kapur, who owns the rights to 'Saare Jahan Se Accha' script, has approached Salman Khan for astronaut Rakesh Sharma's biopic as he is "confident that Salman can pull off this role", reports said. Salman liked the script's concept but he hasn't given his nod, reports added. Notably, Rakesh is the first Indian citizen to reach outer space.