Officials said analysis of CCTV footage from three days leading up to the blast yielded no clue, but they will continue to scan footage of the past 10-12 days.

The Delhi Police said on Monday they are probing the alleged involvement of pro-Khalistan groups in the bomb blast outside the CRPF School in Rohini on Sunday after they found that one such channel on Telegram shared CCTV footage of the incident.

Probing a possible Khalistani link to the explosion near a CRPF school in Rohini, the Delhi Police on Monday wrote to the social messaging app Telegram, seeking information about a 'channel' which claimed that the blast was in retaliation to the "targeting" of pro-Khalistan separatists allegedly by Indian agents.

Early Sunday morning, a loud explosion startled Rohini Sector 14 residents, causing significant damage to shops and buildings. The blast led to thick smoke and shattered windowpanes but fortunately occurred when the area was relatively empty,

Many revelations are being made in the investigation of this bomb blast. The connection of the blasts is also being linked to Khalistan.

Delhi Police has sought details of Telegram channel ’Justice League India’ from the messenger group after Rohini CRPF school explosion