Actor Shah Rukh Khan is going through the grind as he shoots for Ra.One and Don 2 side-by-side. With him playing superhero in Ra.One, Shah Rukh gets into heavy costumes that make him lose weight. Unfortunately, he has to put on all that lost weight back on for his continuity in 'Don 2'. It's this constant losing weight and putting on weight that has got SRK exhausted. But the actor says he's loving the process nonetheless, simply because the masses are going to be entertained at the end of it all. However, with most of the shooting done for both films, Shah Rukh is breathing a little easy now. "He is working hard on the post production of Ra.One." The battle isn't over till the film is out in the threatres. Till then, Shah Rukh won't rest," says a unit member.
