Indian airlines have received more than 100 bomb threat hoaxes in a span of few days, forcing planes to delay, reroute and make emergency landings – throwing the country’s aviation industry into costly disarray right before one of the biggest festivals of the year.

More than 80 domestic and international flights of various Indian airlines received bomb threats on October 24. In 11 days, more than 250 flights operated by the Indian carriers have received bomb threats.

The bomb threats targeting Indian airlines continued to escalate unabated on Friday with over six SpiceJet flights receiving fresh threats, said officials.Signalling a worrying trend, over 70 flights received fresh threats within a span of 24 hours on Thursday.