Bollywood veteran Amitabh Bachchan has thanked fans who expressed concern following his blog announcement that he was undergoing a surgery.

The 78-year-old actor did not give out any details about the nature of the procedure or his medical condition, but unconfirmed sources have said he has undergone a cataract surgery.

Overwhelmed by fan concern, the actor posted three folded hand emojis on Twitter.

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