Veteran actor-director Manoj Kumar, who was admitted to the Kokilaben Hospital two days back, will undergo gall bladder surgery Wednesday - his 75th birthday

"He has an inflamed gall bladder with gall stones and he will undergo gall bladder surgery tomorrow (Wednesday) 8.00 a.m., " the hospital's executive director Ram Narain told.

The actor was hospitalized after pain in his gall bladder.