An Indigo Airbus A320-200N, registration VT-IVS performing flight 6E-19 from Mumbai to Singapore, was enroute at FL350 near Nagpur when the crew decided to divert to Nagpur due to a suspected oil leak. The aircraft landed safely in Nagpur.

A replacement A320-200N registration VT-IZW reached Singapore with a delay of 6 hours.

The occurrence aircraft positioned to Delhi after about 21 hours on the ground in Nagpur.

The airline reported the aircraft diverted to Nagpur due to a suspected oil leak.