Photo credit: Nepal Airlines
The flight took off from TIA at 1:45 pm, before being forced to return to the same airport 25 minutes later, news portal Nepal News reported.
Passengers on flight RA-225 bound for Bengaluru reported hearing a loud noise, the Himalayan Times newspaper quoted TIA sources as saying.
TIA engineers are now examining the aircraft, Sitaula added.
Arrangements have been made to shift the passengers to another aircraft, the Nepal News report said.
The A320 has a maximum capacity of up to 180 passengers.