None of the stones hit the C-3 coach in which Rahul Gandhi was seated, on a window seat.

The SPG did not allow the train to stop at Panipat station following the incident.

Rahul Gandhi, who chose to travel to Ludhiana and back to Delhi in the chair car instead of flying in a helicopter or taking an executive class seat on the train, alighted at the New Delhi station just after 11 p.m. Tuesday. He looked unperturbed.

Fellow passengers said the incident left them disturbed.

'A child sitting next to the smashed window could have been hurt. If this has happened because of Rahul travelling on this train, it would be better if such VIPs don't travel with the public. The stone hit the window like a bullet and landed inside with glass pieces,' a passenger said.

Rahul Gandhi had made the day-trip to Punjab's Ludhiana city to take part in a training camp for Youth Congress members.

The Congress MP followed his mother and Congress president Sonia Gandhi in travelling economy class.

Sonia Gandhi Monday flew economy class from New Delhi to Mumbai as part of an austerity drive.