Although all these calls were hoaxes, passengers had to face immense hardships and airport security infrastructure was under immense stress.

Air India passengers arriving in New York from Mumbai on Saturday were delayed by a hoax bomb threat, adding to a string of false alarms the carrier has received this month.

A dramatic and unprecedented surge in hoax bomb threats targeting Indian airlines is wreaking havoc on flight schedules, diverting planes and causing widespread disruptions. A video posted on social media last week showed passengers draped in woollens,