The Regional Connectivity Scheme (RCS)—popularly known as UDAN (Ude Desh ka Aam Nagrik)—is a flagship initiative launched by the Ministry of Civil Aviation on October 21, 2016. It serves as a key operational component of the National Civil Aviation Policy (NCAP) 2016, designed to stimulate regional air connectivity and make flying affordable for the masses.
Regulatory and Enforcement Architecture
The scheme is jointly implemented by the Ministry of Civil Aviation, State Governments, and the Airports Authority of India (AAI), which functions as the designated Implementing Agency. The Directorate General of Civil Aviation (DGCA) ensures regulatory oversight regarding airworthiness, safety, and pilot licensing for regional carriers, while the Airports Economic Regulatory Authority (AERA) monitors aeronautical tariffs at connected hubs.
Macro-Economic Significance and Multiplier Effect
Democratization of Aviation and Market Expansion
Historically, Indian aviation was skewed toward major tier-1 trunk routes. UDAN restructured the market paradigm by transforming unserved (no commercial flights) and underserved (fewer than seven flights per week) regional airstrips into active economic nodes. This spatial expansion has vastly increased India’s domestic passenger traffic, driving the country’s transition into one of the largest aviation markets globally.
The Economic Multiplier and Regional Development
The aviation sector commands a high employment multiplier effect of 6.1 and an income multiplier effect of 3.25. By providing rapid transit to tier-2, tier-3, and remote locations, UDAN accelerates local business investments, integrates regional medical and educational hubs with metropolitan centers, and unlocks untapped potential in domestic tourism.
Financial and Operational Mechanism
The sustainability of the UDAN scheme relies on a structured, market-driven economic framework balancing fiscal incentives with tariff caps.
Market-Based Competitive Bidding
Airlines bid for exclusive operating rights on specific regional routes through a transparent reverse-bidding mechanism. The Selected Airline Operator (SAO) receives exclusive rights to operate the route for a period of three years, preventing destructive price wars during the nascent phase of route development.
Price Capping and Fare Dynamics
To ensure affordability, airfares are legally capped for a specified percentage of seats on each UDAN flight (typically 50% of the aircraft capacity or a minimum of 9 and a maximum of 40 seats). The indexation of the fare cap is historically tied to a baseline of approximately ₹2,500 for an hour-long flight covering a distance of 500 kilometers, scaling proportionally for varying stage lengths and helicopter operations.
Viability Gap Funding (VGF)
To compensate SAOs for operating price-capped regional routes, the government provides financial subsidies in the form of Viability Gap Funding.
- Regional Connectivity Fund (RCF): The VGF is financed through the RCF, a centralized pool generated by levying a uniform, nominal fee on scheduled commercial flights operating across major domestic trunk routes.
- Center-State Sharing Ratio: The Central Government funds 80% of the VGF from the RCF, while the respective State Government contributes the remaining 20%. For the North-Eastern States and Union Territories, the state/UT share is reduced to 10%.
Fiscal Concessions by Stakeholders
| Stakeholder Entity | Type of Concession Provided | Economic Objective |
| State Governments | Reduction of VAT on Aviation Turbine Fuel (ATF) to 1% or less at RCS airports for 10 years; provision of free land, security, and fire services. | Minimizes structural operating costs for regional carriers. |
| Central Government | Excise Duty exemption on ATF at RCS airports; flexibility to allow self-ground handling by regional airlines. | Lowers regulatory compliance cost and fuel expenditure burdens. |
| Airport Operators (AAI) | Waiver of landing charges, housing/parking charges, and Terminal Navigation Landing Charges (TNLC). | Reduces the aeronautical tariff burden on low-frequency flights. |
Evolution of UDAN: Iterative Phases and Special Target Segments
The scheme has evolved through successive, targeted phases to address specific geographical and logistical demands.
UDAN 1.0, 2.0, and 3.0
- UDAN 1.0: Focused on operationalizing legacy, unused airstrips through initial bidding rounds, bringing 5 airlines into the regional ecosystem.
- UDAN 2.0: Prioritized helipads and helidromes in hilly and inaccessible terrains, particularly in the North-Eastern Region, Jammu & Kashmir, and Himachal Pradesh.
- UDAN 3.0: Introduced Tourism Routes in coordination with the Ministry of Tourism, and included seaplane operations utilizing water aerodromes (e.g., Sabarmati Riverfront and Statue of Unity).
UDAN 4.0 and 5.0 Lifecycle
- UDAN 4.0: Focused heavily on the North-Eastern Region, hilly states, and islands, offering increased VGF allocation to incentivize flights to strategically isolated regions.
- UDAN 5.0 Series (including 5.1 and 5.2): Eliminated the distance cap between origin and destination airports, allowing longer regional routes. It restricted VGF eligibility to aircraft with more than 20 seats to increase capacity, while introducing dedicated sub-schemes for small aircraft (under 20 seats) to boost micro-connectivity.
Lifeline UDAN
Launched during the COVID-19 pandemic, this specialized iteration was non-commercial. It utilized the regional aviation network to transport essential medical cargo, PPE kits, testing reagents, and healthcare personnel to remote parts of the country.
Krishi UDAN
Formulated to assist farmers in transporting perishable agricultural, horticultural, and tribal produce to domestic and international markets. Krishi UDAN 2.0 focuses primarily on the North-Eastern, hilly, and tribal regions, providing a 100% waiver of landing, parking, and terminal charges for cargo freighters at targeted AAI airports to optimize agricultural supply chains.
International UDAN
An extension where state governments (such as Assam and Odisha) provide fixed VGF to select international airlines to operate direct flights from regional capitals to international destinations (like Bangkok, Singapore, or Dhaka), bypassing the major metro hubs.
Structural Challenges and Bottlenecks
Financial Insolvency of Regional Carriers
Several low-cost regional airlines that won bids under UDAN faced structural financial collapses or bankruptcy due to low cash reserves, high lease rentals for regional turboprop aircraft, and currency fluctuations (as aircraft parts and leases are dollar-denominated).
Infrastructure Gaps at Small Airstrips
Many unserved airstrips require extensive upgrades to meet DGCA safety standards. Delays in installing night-landing equipment, automated Air Traffic Management (ATM) tools, and passenger terminal infrastructure often prolong the time between route award and actual flight operations.
High Taxation and ATF Volatility
Aviation Turbine Fuel (ATF) remains a major cost driver, accounting for 35% to 40% of an Indian carrier’s operating expenses. While states reduce VAT for UDAN flights, trunk-route connections that feed regional routes face high central excise and varying state tax rates, squeezing overall airline profit margins.
Demand Unsustainability Post-VGF
The VGF subsidy is capped at a three-year period per route. Several regional routes have struggled to remain commercially viable after the subsidy ends, as local passenger demand at full market pricing is sometimes insufficient to sustain operations without government support.
Statistical Snapshot and Facts for UPSC Prelims
Operational Metrics
Since its inception, the UDAN scheme has operationalized over 85 unserved and underserved airports, helidromes, and water aerodromes. It has successfully connected hundreds of regional routes, providing air connectivity to millions of first-time flyers who previously relied exclusively on rail or road transport.
Landlord Model Transformation
Airstrips developed under UDAN increasingly utilize agile management. The state governments buy and clear the land, while the AAI or private partners develop and run the operational terminal infrastructure.
PM GatiShakti Integration
The spatial planning of UDAN routes is fully mapped on the PM GatiShakti National Master Plan digital platform. This ensures that new regional airports are located close to upcoming industrial corridors, multi-modal logistics parks, and tourism circuits, preventing disjointed infrastructure creation.
The “Grounded Aircraft” Phenomenon
A key operational factor monitored by the Ministry of Civil Aviation is the global shortage of supply chains for aircraft engines (e.g., Pratt & Whitney engine issues). This has periodically grounded parts of the regional turboprop fleets in India, impacting the continuity of awarded UDAN routes.
Last Modified: May 15, 2026