New Delhi: Two flights bound for Nepal and Bhubaneswar were on Thursday grounded just before taking off after security agencies were alerted of a bomb threat call on the two airliners at the Indira Gandhi International Airport (IGIA) in New Delhi.

Officials said passengers on board the two aircraft-- Royal Nepal Airlines (Delhi-Kathmandu) and Air India (Delhi-Bhubaneswar-- were evacuated and taken to the isolation bay where security agencies carried out anti-sabotage checks after a threat call was received by the airport control room at about 10 am.