The aircraft made an emergency landing at the Mangalore airport, an Air India Express official said.
The plane landed safely and there was no harm to any passenger or crew, he said.
The aircraft has been grounded and is being inspected by the airline's team of engineers, the official said.
The flight is now rescheduled for tomorrow at 5.30 am, the official said.
"The flight, IX 821, departed from Mangalore for Doha at 5.40 pm. However, when it was mid-air, the pilot detected some technical snag and decided to take back the aircraft to Mangalore," the official said.
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Air India Express is making arrangements to fly the stranded passengers to their destination, the official said.
The flight will resume its journey tomorrow at 5.30 am for which aircraft will be deployed, he said.
Passengers have been given the option of either boarding the rescheduled flight or take full refund or reschedule their journey at a later date, the official said.
Those who have opted for tomorrow's flight have been provided with hotel accommodation and other facilities, he said.
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