A minor accident on the sets of "Department" has left Bollywood megastar Amitabh Bachchan with a hairline rib fracture and immense pain.

"There is a fracture in the rib, albeit hairline; it cannot be given any treatment, for such ailments are left to heal on their own, " Big B posted on his blog bigb.bigadda.com.

"That takes care of the next 3-4 weeks because that is the recognised healing period. Bear the pain and that is it... Damn!"

It is the good old hot water bottle that is helping the 68-year-old endure acute pain and, occasionally, reminding him of Delhi and Allahabad.

"The hot water bottle has become my greatest companion for the last two days and, with the results of the CT scan, it looks like I shall stay with it much longer than I had imagined. It's such a useful element in the house, " he posted.

"And from the time I realized the difference between hot and cold, the hot water bottle has never undergone any change in size or shape. It has been like this for donkey's years. The winter in Allahabad and Delhi are distinct reminders of it, " he added.