Aamir Khan stepped out of astronaut Rakesh Sharma’s biopic, leaving the vacuum for Shah Rukh Khan to fill in. However, the leading lady for the film, reportedly titled ‘Salute’, is still keeping the makers busy. Buzz suggests that Aishwarya Rai Bachchan and Deepika Padukone are the two names being considered to play Shah Rukh’s wife in the biopic. An official announcement of the cast will soon be made as ‘Salute’ is scheduled to go on floors in September this year. SRK is currently working on Aanand L Rai’s ‘Zero’ and will begin ‘Salute’ soon after.