Hangal, 98, passed away in Mumbai this morning following a brief illness aggravated by a fracture in his thigh bone.
"AK Hangal, passes away this morning!! A veteran, a gentleman, a congenial co artist and a master at his work," he posted on micro-blogging site Twitter.
Hangal is most fondly remembered as Rahim Chacha from the film 'Sholay', in which Bachchan played one of the main leads.
It was in 'Sholay' that Hangal uttered the dialogue, "Itna sannata kyon hai, bhai?", which went on to become one of the most popular lines in Hindi cinema.