Attenborough died in London Sunday night following prolonged illness. He was 90. His 1982 film, "Gandhi", which won him two Oscars, is a biopic on Mohandas Karamchand Gandhi, who led India's non-violent independence movement against British rule.
It featured a host of Indian actors including Rohini Hattangadi, Om Puri, Alyque Padamsee, Alok Nath and Roshan Seth.
Here's what some celebrities had to say on Twitter in rememberance of the filmmaker, who, according to Shoojit Sircar, gave the world, "the only biopic we're proud of".
Alok Nath: The man who reinvented the Mahatma for the whole world to see & know, director of my debut film GANDHI sir Richard Attenborough rest in peace sir.
Anil Kapoor: I learnt more about the Mahatma from Attenborough's Gandhi than the history lessons in school. Unforgettable, honest & inspirational!
Anupam Kher: Had the honour of meeting Sir Richard Attenborough during the casting of GANDHI. He was a wonderful human being & a Great director. RIP
Shobhaa De: Richard Attenborough convinced the world that a Mahatma did indeed walk the earth. R.I.P.
Rakeysh Omprakash Mehra: One of the greats of cinema Lord Attenborough is no more Brighton Rock to Jurassic park. A bridge to far to Gandhi -- He lives for ever.
Rahul Bose: Still remember Richard Attenborough's tribute to Mahatma Gandhi when 'Gandhi' won best film at the Oscars. R.I.P.
Shoojit Sircar: Rip Richard Attenborough...dies at 90...directed "Gandhi"...the only biopic we are proud of.
Sangeeth Sivan: RIP #RichardAttenborough...1923-2014. Actor, Director & a great human being. He will live on in our hearts.
Vinay Pathak: Richard Attenborough. REST IN PEACE !
Milap Zaveri: RIP Sir Richard Attenborough...Now the "Mahatma" can personally congratulate you in heaven for telling his story so brilliantly.
Sanjay Gupta: HE MADE MY FAVOURITE INDIAN FILM - GANDHI. RIP. Lord Richard Attenborough Passes Away at 90.
Atul Kasbekar: RIP Sir Richard Attenborough. And thank you for making 'Gandhi'