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The drill started at 9 PM and went on for close to an hour, the police said.
"Ramming a vehicle into pedestrians has become the most common form of terror attack. We keep receiving inputs about terror outfits planning to target Delhi. Mock drills are a way to check the preparedness levels of various stakeholders," said a senior police officer referring to the recent terror attacks in London.
The police had received a specific input about a "London- style" attack being planned to disrupt the International Day of Yoga in Connaught Place here yesterday and a three-tier security cover was thrown around the place.
In April, a hijacked beer truck rammed pedestrians at a central Stockholm department store, killing four people, wounding 15 others and sending screaming shoppers fleeing in panic.