Officials are probing Nabi's links with a radicalised module dismantled in Faridabad during a joint operation by the Jammu & Kashmir Police and Haryana’s Special Task Force (STF). That operation led to the arrest of eight individuals, including three doctors, and the seizure of 2,900 kg of explosives and arms from multiple locations in Haryana.

Meanwhile, the Delhi Police also detained a Faridabad-based car dealer in connection with the Red Fort blast, with the assistance of local police. It was revealed that the car dealer facilitated the sale of the Hyundai i20 used in the blast.

The entire chain of ownership of the i20 car is being investigated to ascertain how it was brought to the dealer, who bought it from him and how it reached the suspect, said officials.

The Delhi Police has also initiated an extensive verification drive involving used-car dealers operating in the national capital.

Delhi Police PRO Sanjay Tyagi said, “As a part of an ongoing process, we keep meeting car dealers and market associations. If any district police has called a meeting to re-enforce this, then it is a welcome step.”