Kingfisher Airlines [ Images ] flight IT-801 from Hyderabad to Delhi [ Images ], which took off at 6.25 am on Thursday with 90 passengers and 7 crew-members on board, returned to the Rajiv Gandhi [ Images ] International Airport soon after.

According to an official release from RGIA authorities, after taking off, the captain alerted air traffic control saying that he was receiving a smoke detection indication in the cargo hold of the aircraft. As per standard airline procedures, he requested to return to Hyderabad.

"The aircraft landed normally and taxied to a standard parking position where the passengers deplaned as usual. During the precautionary unloading of the cargo, an un-identified substance was located. This is being investigated by the airline and facilitated by the airport operator," the press release added.