Apparently, the actor had not been feeling well for a while but decided to not make any noise about his discomfort in order to meet his work deadline.
The shoot schedule was then followed by a dubbing session that ultimately took a physical and mental toll on the actor. Our source points out, "Though the film has been shot for quite some time now and the release is right around the corner, there were some last-minute changes to be made.
This unplanned development required Riteish's uninterrupted commitment. At the end of the day, the actor didn't disappoint. And much to the production unit's relief, he was very co-operative and gave his best though he wasn't keeping fit."
The source adds, "Working till 4 am in the morning, he ensured that the shoot was wrapped up within its schedule by making it possible."