Japan has provided a Rs 2.767 billion grant to Nepal to upgrade air traffic control facilities at Tribhuvan International Airport (TIA) in Kathmandu, the country's sole international gateway.

The grant commitment addresses infrastructure at an airport that handles all of Nepal's international traffic and has long operated with constrained capacity. The Himalayan Times reported the financing, which directs Japanese aid funds specifically at TIA's air traffic control systems rather than at runway or terminal expansion.

What does the grant cover?

The Rs 2.767 billion (approximately $20.7 million at current exchange rates) is designated for ATC facility upgrades at TIA. Air traffic control modernization at the airport bears directly on:

• Separation standards and runway throughput at a single-runway facility
• Capacity limits during peak departure and arrival banks
• Safety margins in Kathmandu's demanding valley terrain

Nepal has no second international airport of comparable scale in routine widebody operation, so any gain in ATC efficiency at TIA translates almost one-for-one into national network capacity.

Why does it matter?

TIA operates as a single-runway, single-terminal chokepoint for international carriers serving Kathmandu, including airlines from across Asia and the Gulf. ATC equipment limitations at the airport constrain movement rates during busy periods and complicate operations in poor visibility.

Japanese grant assistance to Nepal's aviation sector has historically focused on safety and capacity infrastructure. This latest tranche continues that pattern, targeting the operational core of the country's air traffic system rather than passenger-facing facilities.

What comes next?

The disbursement sets up a procurement and installation phase for the new control systems at TIA. Delivery timelines, equipment suppliers and commissioning dates will determine when the capacity and safety benefits reach airlines operating into Kathmandu — and whether the upgrade keeps pace with traffic growth at one of South Asia's most geographically constrained international airports.