With great arrogance comes great stupidity, as these 20-somethings have shown. A video showing four youths indulging in hooliganism and doing mindless stunts onboard a Harbour line train between Chunabhatti and GTB Nagar stations has gone viral. And the video, shot by one of them, also shows the group's audacious robbery.

The incident happened earlier this week. The four youths, wearing black, brown and silver t-shirts, were travelling in the luggage compartment of the Harbour line train and started doing foolhardy stunts. With one of the youths holding the phone in front in selfie mode and recording the whole thing, the viral clip shows the quartet hanging by the handle bars and swinging out and even climbing up to the compartment roof.