Amitabh Bachchan remained in SevenHills Hospital here for a fourth day Tuesday after two abdominal surgeries, with a source saying he won't be discharged immediately. The Bollywood megastar tweeted Monday night that he was having severe pain where the surgeries were done Saturday. He also gave a detailed account of his condition on his blog. But there was no word from him Tuesday. His family and doctors at the hospital have also not spoken. But an informed source told IANS that the actor was unlikely to be discharged until early Wednesday. The 69-year-old was earlier meant to be freed Monday. His son Abhishek had updated details of his father's surgery Saturday, but he made no comment Tuesday. Amitabh had tweeted earlier that his release from hospital was delayed because of acute pain.