Three Vistara flights to London, Paris and Hong Kong from Delhi receive bomb threats, on Friday.
Vistara flight UK17 operating from Delhi to London was diverted to Frankfurt as a precautionary measure.
Flight QP 1366 of Akasa Air, this morning, scheduled to fly from Bengaluru to Mumbai also received a security alert before departure.
One more flight, a Dubai-Jaipur Air India Express, with 189 passengers, made an emergency landing at Jaipur airport this morning due to a bomb threat.
As per safety and security procedures, all passengers had to be deplaned mandatory security check.