There was no official confirmation on what caused the blast. Union Home Minister Amit Shah said the investigating agencies were probing “all angles” and not ruling out any possibility. The vehicle, identified as a Hyundai i20, was tracked to a Gurgaon resident, who is learnt to have said during questioning that he had sold it to someone else. The vehicle is learnt to have changed hands a couple of times, with the last owner being identified as a resident of Pulwama in Jammu and Kashmir. Story continues below this ad A preliminary investigation indicated that the vehicle had been parked near the Red Fort area for over three hours before it was driven out. Speaking to reporters after visiting the blast site, Delhi Police Commissioner Satish Golcha said that a slow-moving vehicle stopped at the traffic signal near Gate No.1 of Red Fort Metro Station, following which an explosion took place at 6.52 pm. Two to three people were in the car, he said. NSG commandoes, in their signature black overalls, arriving at the blast …