Kathmandu, 16 December : Months-long renovation works at Tribhuvan International Airport in Kathmandu, the lone international airport in Kathmandu, have been completed. The airport authorities state that the facility is now ready for operation for 21 hours a day. The airport will launch the 21-hour operation on January 1, 2020, the day on which the government will launch the Visit Nepal Year 2020.  People's News Monitoring Service