Mumbai, March 5 -- In a good news to his fans, Bollywood megastar Amitabh Bachchan, who has recently been operated for abdominal issues, is "repairing well".The 69-year-old actor tweeted recently, "Many ask how I am doing... I am repairing well and gradually, but it does take time, is all I can say...will persevere to hasten it".Though he is taking proper rest after Feb 11 surgery at the Seven Hills Hospital, the superstar doesnt fail to greet his fans at his doorstep almost every Sunday morning."Gosh! Another Sunday? But we just had one the other day! Surprising how time flies even when you do nothing...will attempt to meet the fans and well wishers like all Sundays at the gate ... if they come," he wrote.