New Delhi, Dec 11 (IANS): The Central government on Tuesday said that Aircraft Accident Investigation Bureau (AAIB) is probing the incident in which a Jaipur-Kolkata IndiGo flight had to make an emergency landing at Kolkata due to smoke inside the cabin and cockpit area.

According to a senior official from the Directorate General of Civil Aviation (DGCA), a preliminary report after a detailed technical inspection has been sought from the airline.

"Indigo flight 6E-237 of December 10 on sector Jaipur-Kolkata made an emergency landing at CCU (Kolkata) due to smoke in cockpit and cabin. Flight landed safely at CCU," the official said.

IndiGo in a statement said there had been no earlier instance of malfunction with the aircraft in question.

"An IndiGo flight (A320 aircraft) 6E-237 operating on Jaipur-Kolkata route made an emergency landing as a precaution at Kolkata due to suspected smoke in cabin," the airline said in a statement.

"The flight landed safely at Kolkata. On reaching the bay a few passengers were evacuated via the aft exit deployed slides, most passengers deplaned via front step ladder. There was no earlier report of any malfunction with the airplane."

AAIB comes under the Ministry of Civil Aviation.