India, Nov. 20 -- Delhi Police are probing two "closed user groups" on encrypted messaging apps, created in 2021 and comprising members from the medical fraternity. While their link to the Red Fort blast module is still unclear, investigators said they have fanned out across Uttar Pradesh, Bihar and Uttarakhand to trace the members and examine their possible connection to the larger conspiracy.

At least seven members of these groups - most of them medical professionals - are under the scanner of the Delhi Police special cell teams assisting the National Investigation Agency (NIA) in the blast probe, officers aware of the matter said. None of the seven have any connection with Al-Falah University, which has emerged as the focal point of t...