Mumbai, Feb 11 (IANS): Megastar Amitabh Bachchan, scheduled to undergo abdominal surgery here Saturday, was happy and cheerful before being wheeled into the operation theatre in the morning, doctors attending on him said.

"Amitabh Bachchan had come with an abdomen complaint. The doctors found that surgery would relieve him. He is undergoing surgery right now. It is in progress, he is doing well," Dr. Asthana, a representative of the SevenHills Hospital told reporters at a press conference here.

The press conference was addressed by three representatives from the SevenHills Hospital, where Big B's granddaughter Beti B was born too.

The doctors refused to divulge other details about the surgery, but they said the 69-year-old veteran was wheeled in around 9 a.m.-9:30 a.m.

"All his family is with him, aaram se thhe (he was relaxed). His vital parameters were fine. He was taken inside. He is in a happy state," added Dr. Asthana.

The abdominal surgery is for addressing a legacy of his 1982 accident on the sets of "Coolie" movie, Amitabh's son Abhishek had informed earlier.