Srinagar, Nov. 12 -- Police on Tuesday investigated the Red Fort blast as a possible terror attack and zeroed in on a Pulwama doctor, who was driving the car that exploded and had links to a terror module busted with the recovery of explosives mainly from Faridabad. Dr Umar Nabi is believed to have died in the blast that killed at least 10 people on Monday evening.On Tuesday, Jammu and Kashmir police took a DNA sample from his mother to establish the connect."We have taken the DNA sample in order to match with the parts found at the scene of the blast," an official said in Srinagar.The Red Fort blast on a busy Monday evening came hours after eight people, including three doctors, were arrested and 2,900 kg of explosives seized with the un...