NEW DELHI: The first regional flight under the Ude Desh ka Aam Nagrik ( UDAN ) scheme will be between Shimla and Delhi and PM Narendra Modi will flag off the first flight tomorrow, the aviation ministry announced today.“The Prime Minister Narendra Modi will flag off the first UDAN flight under RCS on Shimla-Delhi sector on April 27, 2017. Simultaneously, Prime Minister Shri Narendra Modi will also flag off the inaugural UDAN flights on Kadapa – Hyderabad and Nanded-Hyderabad sectors,” said a release from the government."Airfare for a 1-hour journey of appx. 500 km on a fixed wing aircraft or for 30 minute journey on a helicopter would be capped at Rs. 2,500," the PMO said."This with proportionate pricing for routes of different stage lengths and flight duration," it said.UDAN is a first-of-its-kind scheme globally to stimulate regional connectivity through a market-based mechanism, the PMO said in a tweet.The aviation ministry launched ‘Ude Deshka Aam Naagrik’ (UDAN) Regional Connectivity Scheme in October, 2016. Under the scheme, the government will provide air connectivity to unserved and underserved airports in the country.The UDAN Scheme is a key component of the National Civil Aviation Policy (NCAP) which was released on June 15, 2016.The connectivity is being provided at a subsidised fare of Rs 2,500 for per hour of flights. The aviation ministry will fund the subsidy by charging a landing fee on airlines operating on the trunk routes.“The UDAN Scheme is a key component of the National Civil Aviation Policy (NCAP) which was released by the Ministry of Civil Aviation on 15th June, 2016. The AAI followed a transparent bidding process by inviting interested bidders and airline operators to submit their Initial Proposals under the provisions of Regional Connectivity Scheme and subsequently inviting counter proposals against such Initial Proposals. The routes and networks are awarded to bidders who submitted valid proposals and quoted the lowest viability gap funding (VGF) from the government for such routes and networks, added a release from the government.Modi will launch the scheme from Shimla.While in Shimla, the Prime Minister also address a rally at the historic Ridge Maidan.This will be his first visit to Shimla after becoming the Prime Minister. He had visited the capital of Himachal Pradesh last in 2003 when he was the Chief Minister of Gujarat.However, it is his second visit to the state. Last year, he had addressed a BJP rally at Mandi.Modi was in-charge of organisational affairs of Himachal Pradesh for eight years till 2002.