An IndiGo Airbus A320neo plane suffered a mid-air engine failure.
A loud bang was also heared, going by few media reports.
The latest incident involving another Pratt & Whitney engine happened when the aircraft was flying to Kolkata from Chennai on January 3.
It was said that the plane returned mid-way to Chennai and has been grounded there since then due to damaged engine blades.
Civil Aviation Ministry will most likely order probe into the incident.
The incident forced the A320neo aircraft to return to Chennai under emergency conditions, he added. The number of people on board the flight could not be ascertained.