On Feb,7,2018, Vistara's UK 997 Pune-bound aircraft from Delhi was just 100 feet away from Air India's AI 631 flight for Bhopal.Both airlines had 261 passengers (Vistara- 152 & Air India-109) on board.It was taken to a safer distance.Accident Investigation Bureau has initiated a probe.Collision was averted after an automatic warning alerted the pilots,that the two planes were in close proximity.