Mumbai, Jan 21 (IANS): Megastar Amitabh Bachchan says at 71 he finds dancing "incongruous", but nevertheless, he enjoys it only if the retakes are within "tolerable limits".

Amitabh was last seen on the silver screen in "Satyagraha" and is currently shooting for his upcoming film "Bhootnath Returns", a sequel to the 2008 horror comedy film "Bhootnath".

"Its been a while, since I shook my body to dance on camera. Now at 71, it does seem incongruous. But truth be told, it's exceedingly enjoyable, so long as the number of takes are within tolerable limits," Big B posted on his blog srbachchan.tumblr.com Tuesday.

He also appreciated the work of choreographer Ganesh Acharya, and said that he is the "one that has created some of the most unusual moves in the movies, and the one whose dance moves look incredibly graceful, despite his enormous girth".

Amitabh then said Acharya informed him that he was one of the group dancers in his 1990 film "Agneepath" during the sequence where he takes Lord Ganesha for immersion.

"Today he is an accomplished director of dance, has directed a film and produced it, opened a dance stage and a kind of school for training, and continues to devour tons and tons of ‘kaaju’ and ‘rewari’ and ‘gajak’," posted Amitabh.