Health of the veteran Indian actor and noted wrestler Dara Singh has deteriorated while he still remains in a critical state in Kokilaben Hospital here in Mumbai.The family members of the actor are hopeful that Dara Singh is not a man who gives up easily and have expressed that, with his will, he will recover quickly. Dara Singh's elder son Vindoo said that, "He's under observation in ICU. The team of doctors is constantly monitoring his health. My dad will soon be fine." Singh's health deteriorated on Saturday evening following which he was rushed to the hospital. Not just the family, but also the film fraternity are praying for Singh's speedy recovery. "Dharmendra called up on Sunday and is expected to visit the hospital on Monday", a source said. Singh's younger son, Amrik and other family members who stay in Chandigarh are presently in Mumbai