Kolkata, Oct. 27 -- The absence of footage from two of the three CCTV cameras installed at the exit gate of Kolkata's ill-fated Chorbagan Durga Puja pandal has hampered the police investigation, with a source claiming that most of the cameras installed at the marquee had never been activated.

"Of the three CCTV cameras installed at the exit gate of the puja pandal in Chorbagan, two were non-functional. These two cameras had never been switched on. The police have managed to retrieve footage from only one of them," the source said, adding that the lack of footage from the other two cameras had inconvenienced investigators.

According to the source, the stampede at the Chorbagan Sarbojanin pandal on October 17, which claimed 19 lives, lasted...