Airport officials said all 68 passengers, including two minors and four crew members who were on board, have safely disembarked from the aircraft.
A runway excursion (RE) veers off or overruns the runway surface as per the description given by the International Civil Aviation Organisation (ICAO), a specialised agency of the United Nations that codifies the principles and techniques of international air navigation.
These surface events occur while an aircraft is taking off or landing, and involve many factors ranging from unstable approaches to the condition of the runway.
The airlines said on its Twitter account that the aircraft took off from Nepalgunj Airport for Kathmandu, careened around 20 metres off the runway and onto the grass while landing at the Tribhuvan International Airport from the Koteshwor side.
Some netizens also made mention of the incident on social media
The incident affected take-offs and landings of all inbound and outbound flights at the only international airport in Nepal. According to the airport, all incoming flights to Kathmandu have been diverted to other airports, as reported by the Bangladesh English language newspaper The Daily Star and the Nepal English newspaper Kathmandu Post.
Tribhuvan International Airport General Manager Raj Kumar Chhetri was quoted by The Daily Star, as saying that firemen, security personnel and rescue workers have been mobilised to remove the aircraft from the runway.