It must be a wig for sure? It is amazing how he has kept it secret and never seen without it. Or is it a permanent hair attachment? Does any body have any information on this? I think he is a good actor but rarely gets the right script, and that is never easy in the hindi film industry. I think he is extremely well spoken and seems to have improved with age. Seems to be a wonderful father and husband. An impressive personality and he deserves his success. Let us hope he gets better scripts and roles to play instead to the typical stereotype. Somehow, our film industry lacks movies with substance just plenty of style. Ambitabh has both. I think he does a good job with KBC as well. But I would love to hear from others about his wig. Surely that cannot be his real hair.