The police are still scanning the footage obtained from the area where a 19-year-old mysteriously fell to his death from the terrace of an eatery in Hauz Khas on Saturday.
The footage shows Siddharth Singh staggering his way up the stairs. The police failed to establish as of Monday evening whether he was accompanied by another person to the terrace.
They are also checking his phone, recovered from the spot, to rule out the notorious Blue Whale Challenge as the possible cause.
The police revisited the spot on Monday to recreate the sequence of events. The police had found his phone and sunglasses on the staircase on Sunday.
Siddharth was a native of Imphal and his father is a former Minister from Manipur.