Anxiety in government and Congress circles is growing even as seven helicopters, including four from the Indian Air Force, are on desperate search and rescue mission for the helicopter carrying Andhra Pradesh chief minister Y S Rajasekhara Reddy, which has been missing since 9.27am on Wednesday. The CM left Hyderabad on a six-seater Bell chopper at 8.35 am for Chittoor accompanied by his secretary and chief security officer. After 9.27am, radio contact was lost with the helicopter. This was when the chopper entered the thickly forested, Naxalite-infested Nallamalla hill range.