The right wheels of the Airbus 320 operated by budget airline Indigo caught fire during the landing and passengers were quickly evacuated through emergency doors, said Rishikesh Sharma, chief of Tribhuwan International Airport in Katmandu.
Mr Sharma said emergency workers responded quickly to control the fire. Officials were investigating the incident. The flight originated in New Delhi.
Nepalese businessman Satish Shrestha, who was aboard the plane and regularly flies the route, said passengers were complaining of a ''rubber burning-like smell'' even before the aircraft landed. Shrestha said the plane, which was arriving from New Delhi, was flying too low before landing.
Officials refused to give details, saying the incident was still being investigated.