New Delhi, Nov. 13 -- In the 10 hours before a Hyundai i20 exploded in a deadly blast near Delhi's Red Fort on Monday evening, the suspected bomber, Dr Umar Un-Nabi, was seen stepping out of the car at least twice without his mask, first in Connaught Place and later near Turkman Gate, said investigators familiar with the probe. Both stops were confirmed through CCTV footage recovered by Delhi Police's Special Cell, which is assisting the National Investigation Agency. According to officers, Umar entered Delhi from the Badarpur border around 8am and drove across southern, central, eastern, and northern Delhi before the car blew up at 6.52pm. The first sighting was in Connaught Place's E-Block, where cameras captured Umar stepping out and walking around the vehicle for nearly 10 minutes. "He was wearing a black shirt, black trousers, and brown leather sandals. He appeared calm, not speaking on his phone or meeting anyone. We cannot speculate on why he stopped there," said a senior Delhi Police officer who reviewed the footage. The officer refused to share the exact time of this incident. The second sighting occurred around 2.30pm near Turkman Gate's Faiz Ilahi Masjid. Footage shows Umar leaving the car unmasked, entering the mosque, offering prayers, and leaving after 10-15 minutes. "He was alone throughout," said an officer, adding that this supports the theory that he was the lone occupant at the time of the explosion. Abdul Salim, a mosque staffer, confirmed that police visited on Tuesday night. "They showed us footage of a white car and a man they said was the accused. We did not recognise him or recall seeing him that day. We cooperated with the police and told them everything we knew," he said. Investigators reconstructed car's path using more than 25 CCTV points. Trail began at a toll plaza near Dhauj village in Haryana's Mewat region just after midnight on Sunday, followed by a sighting at Faridabad's Asian Hospital around 7.25am Monday.After entering Delhi through the Badarpur toll at 8.13am, the car was seen at a Kalkaji petrol pump at 8.20am and then heading towards the DND Flyway, police said. Between 9am and 2pm, investigators noted a "blackout period", they added. "We suspect he moved towards east Delhi, possibly to meet someone or prepare for the blast. The car was seen in that area earlier as well," said another officer, noting that Umar appeared "well-versed with Delhi's routes."...