Iconic actor Amitabh Bachchan stepped out of his Mumbai home briefly on the night of October 10 to greet scores of fans who had gathered outside to wish him on his 81st birthday, which is on October 11.

Amitabh Bachchan rings in 81st birthday with grandkids Navya, Agastya and Aaradhya

Amitabh Bachchan becomes an octogenarian today. The megastar has been entertaining us for more than 50 years. And at this age, he remains as active as he ever was.

How Amitabh Bachchan faced financial troubles, and emerged stronger than ever

Amitabh Bachchan at 80: The different shades of Big B

Amitabh Bachchan @ 80: WION's favourite films of the superstar

For fans of Amitabh Bachchan across the world, October 11 is a special day. The Indian superstar turned 80 on Tuesday. Ardent fans gathered outside Bachchan's Mumbai residence, Jalsa at midnight to celebrate the special day.

Watch: Amitabh Bachchan surprises fans gathered outside his home at midnight of his birthday

Every legend begins with the same phrase: Once upon a time… So, once upon a time, there was a comedian named Mehmood, son of Mumtaz Ali, an actor-dancer who spent a frugal career within the marginal category just above extras in the fluid caste hierarchy of Bollywood cinema.

Amitabh Bachchan: Legend and Legacy

Amitabh Bachchan at 80: 10 quirky films starring Big B you should watch

Age is just a number! On Big B's 79th birthday a look back at his energetic 70's

A day before his 79th birthday, Amitabh Bachchan withdraw his name from an advertising campaign promoting a tobacco brand. Bachchan stated that he had returned the money he'd received for promoting the brand.

Amitabh Bachchan steps down as the face of tobacco brand post backlash 

Today, on Sunday, Amitabh Bachchan ringed in his 78th birthday, and on his special day, several Bollywood celebrities are sending their heartfelt wishes to the legendary actor.