Megastar Amitabh Bachchan has hurt his rib cage while shooting for a movie in Kolkata. However, he says there's nothing to worry about.

The 73-year-old, who is here to shoot upcoming thriller "TE3N", shared the news on his blog.

"No nothing to worry... I have injured my rib cage, it pains and so when I breathe it hurts. Am doing ice-pack and pain-killers, spoken to my doctor... should take 48 hours to heal, he says. Else we do X-Ray or MRI or whatever he decides," Big B posted in the early hours of Thursday morning.

Despite the injury, the thespian is continuing his promotion spree for his forthcoming movie "Wazir", which releases on Friday.

"Hurt rib from shoot... but ok... taking friends Ef to WAZIR at South City Mall, Kolkata this evening! Yea," he tweeted.

"Wazir" is directed by Bejoy Nambiar and also features Farhan Akhtar, while "TE3N" is helmed by Ribhu Dasgupta, produced by Sujoy Ghosh and features actors Nawazuddin Siddiqui and Vidya Balan.