Superstar Shah Rukh Khan was suffering pain in his knees, but stillstill chose to rehearse for a 39garba39 dance sequence for Rahul Dholakia39s "Raees"."Ok then. Finally called for the shot. Knee paining so have to go rehearse my Garbha....all ye beautiful ppl Khuda Hafiz. smile a lot," the actor posted on his Twitter page on Sunday night."Raees", an action thriller, will see Shah Rukh playing a gangster. Slated to release on Eid next year, it also features Nawazuddin Siddiqui and Pakistani actress Mahira Khan.Last year, the King Khan had suffered an injury while shooting Farah Khan39s "Happy New Year". Apart from getting a fractured shoulder, his left knee39s patellar tendon had got torn.