Jamnagar airport officials informed the media that the aircraft is in an isolation bay.
"Moscow-Goa chartered flight diverted to Jamnagar, Gujarat, after Goa ATC received a bomb threat. Aircraft is in isolation bay," Airport officials told news agency ANI.
The plane with 244 people on board landed safely at Jamnagar (defence) airport at 9:49 pm, reports said.
All passengers have been deboarded, he added.
A probe is underway to look into the bomb threat.