Comedian-actor Raju Srivastava, who has been in the intensive care unit for nine days following a heart attack, continues to be on the ventilator and is critical, sources at Delhi's All India Institute of Medical Sciences or AIIMS said today. Fellow comedian and one of his friends, Sunil Pal, appealed to his fans to pray for Mr Srivastava's health as he "really needs this". "His brain has stopped functioning. Please pray for him," he said.