Prime Minister Narendra Modi would on Monday inaugurate the first airport in Sikkim at Paykong. It will improve connectivity, benefitting the people of the state.

The Prime Minister arrived the Himalayan state after launching the Centre's flagship and world’s biggest Ayushman Bharat-National Health Protection Mission (AB-NHPM) from Jharkhand capital Ranchi on Sunday.

Sikkim's dream of having an airport will come true nine years after a foundation stone of the Greenfield airport was laid, around 33 km from Gangtok, in 2009. The airport is spread over 201 acres and is located on top of a hill about two km above Pakyong village at 4,500 feet above sea level, Sikkim Chief Secretary A K Srivastava said.

The airport was constructed by the Airports Authority of India.At present It is the nearest airport from Sikkim , is located 124 km away in Bagdogra in West Bengal. The airport was constructed at an estimated cost of Rs 605 crore and is an "engineering marvel" for its soil reinforcement and slope stabilisation techniques keeping in view the altitude it was built at, Srivastava added.

Integrated structures comprising an ATC tower-cum-fire station, two sophisticated CFT, one terminal building for passengers, high-intensity runway lights, parking for over 50 vehicles are some of the features of the airport, the chief secretary said.

The fortification wall of the project is 80-metre-high, one of the tallest in the world, Srivastava further said.

The Pakyong airport is located around 60 km from the Indo-China border. With this The Indian Air Force (IAF) would be able to land various types of aircraft on the airport's runway with the construction of another 75-metre stretch adjacent to the main runway in the coming days, the chief secretary informed. It has a 1.75 km runway with a width of 30 metre. It also has a 116-metre-long taxiway connecting it to an apron measuring 106 metre by 76 metre that can concurrently put up two ATR-72 aircraft.

The airport has 3,000 sq metre terminal building and has a capacity to handle 50 in-bound and as many out-bound passengers.

Pakyong Airport Director R Manjunatha said the land for the airport was carved from the mountain side using huge geo technical 'cut and fill' engineering works.

The first commercial flight from Pakyong would take off on October 4, he said. SpiceJet will operate 78-seater Bombardier Q400 flights to and fro Delhi, Kolkata and Guwahati everyday under the Civil Aviation Ministry's Ude Desh Ka Aam Nagrik (UDAN) scheme, Manjunatha said.

On March 5, IAF's Dornier-228 aircraft was tested from Pakyong, officials said. SpiceJet followed it by conducting test runs of the 78-seater Bombardier Q400 from Kolkata to Pakyong on March 10. This led to security clearances for commercial operations, they said.

The Sikkim Police has been entrusted with the security of the Pakyong airport, the officials said.