Popular Tamil actor Vivek, 59, was admitted to SIMS Hospital in Chennai on Friday after he complained of discomfort. Doctors in the emergency room said his medical condition was critical. He has been put on ECMO.Vivekanandan, known by his stage name Vivek, is an Indian film actor, comedian, television personality, playback singer and activist working in the Tamil film industry. In 2009, Government of India awarded Vivek with the Padma Shri award for his contribution to the arts.