MUMBAI, Feb. 3 -- Two passenger jets, an Air India and an IndiGo aircraft, clipped wings while taxiing at Mumbai's international airport on Tuesday evening, people familiar with the matter said.

Officials of the Directorate General of Civil Aviation, India's aviation regulator, are also on the spot. The two aircraft have been grounded by the airlines for technical checks.

The incident occurred at approximately 7:30 pm when the Air India aircraft (AI 2732) was taxiing for departure to Coimbatore, and the Indigo aircraft (6E 791) was taxiing after landing from Hyderabad.

In separate statements, the two airlines confirmed that their planes had made contact.

An Air India spokesperson said the aircraft operating as flight AI2732 to Coimbat...