Hangal, 95, was admitted to Parekh Hospital in Santacruz in suburban Mumbai on August 16.
"He had a fall on August 13. On August 16, he was admitted to the hospital as he had suffered a back injury and had to undergo a surgery. But that could not take place as later it was found that he has chest and breathing problems. His condition is still serious and there is no sign of improvement. He has a breathing problem and is in ICU right now, Vijay said.
AK Hangal, who has acted in over 200 films, is best known for his roles in Namak Haram, Sholay, Shaukin and Aaina. AK Hangal recently made an appearance in TV show Madhubala.