A newly-wed couple are heading for Darjeeling for honeymoon by train. A well-dressed co-passenger soon befriends the couple. Later, the gentleman offers tea to them. He himself goes to the one end of the compartment to fetch it from a hawker. A few sips, the couple become unconscious and the gentleman decamps with their luggage.
This can happen to anyone traveling in India .Awareness and alertness from the traveler is the only remedy.
If a stranger shows friendliness beware,don't accept Tea or Biscuits,.
Generally, these anti-socials use AT Vamm tablets or spray to make passengers unconscious. These tablets are dissolved in tea or cold drinks or mixed with cream biscuits.