The 14-second video footage shows three men, wearing Army, having big backpacks and carrying AK assault rifles, walking down the road at 4:55 a.M. Yesterday.
The images were captured by a CCTV camera placed at a shop at Taragarh intersection in Dinanagar area, just before they entered this Punjab town bordering Pakistan, SSP Gurdaspur G S Toor said today.
During investigations, it emerged that the terrorists unsuccessfully tried to snatch a mini truck (tempo) from its driver and then opened fire on a moving bus, Toor said.
Earlier this morning, Punjab police defused two grenades seized near the operation site at Dinanagar police station complex.
Seven people, including an SP, were among killed in yesterday's terror strike that lasted around 12 hours.