Proposed Kalyani Airport Project Highlights Growing Investment in Greenfield Aviation Infrastructure in India

June 25, 2026

In June 2026, West Bengal Finance Minister Swapan Dasgupta announced a major new greenfield airport project in India. Speaking in the Legislative Assembly while presenting the first BJP government budget for FY 2026-27, he said: "Kolkata Airport is facing significant passenger congestion, and there is a need for a second airport in Kolkata to boost the regional economy. Government will identify 1,000-1,500 acres of land near Kalyani to set up a new greenfield airport near Kolkata."

The announcement is part of West Bengal's Rs 4,38,775 crore state budget, the largest in the state's history. The Kalyani greenfield airport is the headline infrastructure project development in that budget. And it reflects a national trend: India is investing in aviation infrastructure at a pace and scale not seen before.

Why Kalyani? The Case for a Second Kolkata Airport

Kolkata's Netaji Subhas Chandra Bose International Airport is one of India's busiest. It handled more than 25 million passengers in FY2024-25. That figure is approaching the airport's practical capacity limit.

Kalyani is located approximately 50 kilometres north of Kolkata, in Nadia district. It is well-connected by road and rail. The area is home to a large industrial zone, several educational institutions, and a growing residential population. A greenfield airport here would serve not just Kolkata overflow demand, it would also improve regional connectivity in India for districts like Nadia, Murshidabad, and North 24 Parganas, which currently lack direct air access.

The West Bengal budget also proposed additional airport projects at Purulia, Balurghat, and Malda under the Centre's UDAN scheme, and an expansion of Cooch Behar airport. Together, these announcements represent a comprehensive push to expand aviation infrastructure across the state, from its southern metro corridor to its northern and western districts.

India's Aviation Boom: Why New Airports Are Urgently Needed

The Kalyani proposal arrives in the middle of India's biggest aviation growth phase. Indian carriers carried over 160 million domestic passengers in FY2025-26. That is a new record.

India currently has 162 operational airports. The government's target is 350 airports by 2047. At least 21 new greenfield airports have been approved or are under various stages of planning and construction nationally.

Major ongoing greenfield airport projects include Navi Mumbai International Airport, Noida International Airport at Jewar, Bhogapuram International Airport in Andhra Pradesh, and Mopa International Airport in Goa. Each of these is a case study in the complexity of airport project planning, and the institutional capacity required to deliver.

Air India has placed the largest aircraft order in Indian aviation history, 470 aircraft, and is expanding rapidly. IndiGo, SpiceJet, and Akasa Air are all scaling capacity. Fleet growth creates demand for airport capacity. The two are inseparable. Without new airports, India's aviation growth hits a hard ceiling. Kalyani is a necessary response to that logic.

From Announcement to Airport: The Infrastructure Project Development Roadmap

An airport announcement in a budget speech is the beginning, not the end, of the project development process. The Kalyani greenfield airport will need to pass through multiple stages before a single spade of earth is turned for construction.

The first stage is site selection. The government has committed to identifying 1,000-1,500 acres near Kalyani. This requires a techno-economic feasibility study covering terrain, soil bearing capacity, drainage patterns, obstacle limitation surfaces, proximity to existing built-up areas, wind rose analysis for runway orientation, and multi-modal ground connectivity.

The second stage is the Detailed Project Report. A DPR for a greenfield airport covers the full project scope: runway design, taxiway and apron layout, terminal building architecture, airside and landside infrastructure, utilities (power, water, waste management), air traffic control infrastructure, cargo facilities, and ground transport connectivity. This is a multi-discipline engineering exercise that typically takes 12-18 months to complete to AAI and DGCA standards.

The third stage is environmental clearance. Under the Environment Impact Assessment Notification, airport projects above a defined threshold require an EIA, a public hearing, and clearance from the Ministry of Environment, Forest and Climate Change. For a 1,000-1,500 acre site in Nadia district, an ecologically sensitive region adjacent to the Hooghly river system, this stage will require careful assessment and community consultation.

Only after these three stages are complete, typically 2-3 years from announcement, can procurement, financing, and construction begin. The total development timeline for a greenfield airport of this scale is typically 5-8 years. Jewar's Noida International Airport, announced in 2017, is only now approaching its first phase of commissioning. Navi Mumbai, announced even earlier, has faced repeated delays. Managing the gap between announcement and delivery is the defining challenge of greenfield airport project development in India.

The Regional Development Opportunity Beyond the Runway

A greenfield airport near Kalyani would do more than ease Kolkata's passenger congestion. It would catalyse a broader regional economic transformation.

Airports create economic gravity. Industrial parks, logistics hubs, hotels, IT parks, and commercial real estate clusters develop around them. The Kalyani area already hosts a major pharmaceutical zone, electronics manufacturing clusters, and one of West Bengal's largest industrial corridors. Air connectivity would make this zone more competitive for attracting domestic and foreign investment.

For West Bengal's broader 'Viksit Bangla' development agenda, the Kalyani airport fits squarely within a larger infrastructure push that includes metro rail extensions to Durgapur, Asansol, Siliguri, and Jalpaiguri, and a major emphasis on improving connectivity in districts that have historically lagged behind Kolkata in infrastructure quality.

The Centre's UDAN scheme has already demonstrated that new regional airports in India generate genuine new passenger demand, not just diversion from existing routes. Purulia, Balurghat, and Malda, also named in the West Bengal budget, are examples of underserved districts where UDAN connectivity can open new economic pathways for local communities and businesses. The Kalyani project, at a larger scale and positioned as a metro-relief airport, combines both the regional connectivity in India mission of UDAN and the metro capacity relief logic that has driven Jewar and Navi Mumbai.

India announced Jewar airport in 2017. It opens in 2027. The Kalyani airport was announced this week. The decade of work that lies ahead is where engineering, planning, and project management make the difference between a runway and a waiting announcement.

IMARC Engineering's Perspective

The Kalyani airport announcement reflects a pattern we see repeatedly across India's infrastructure pipeline: a high-priority project is announced in a budget speech, and then the real work begins — site selection, land acquisition, feasibility study, master planning, environmental clearance, AAI regulatory engagement, and phased construction across a multi-year timeline.

Each of these stages is technically demanding and time-sensitive. At IMARC Engineering, we support airport project developers, state governments, and SPVs at exactly this stage, providing feasibility studies, DPR preparation, site selection analysis, infrastructure design, utility planning, environmental assessment support, and project management for greenfield airport projects in India and other large infrastructure developments.

A greenfield airport is not just a runway and a terminal. It is a multi-disciplinary infrastructure ecosystem spanning civil, structural, electrical, mechanical, drainage, ground transport, and utility systems, all of which must be integrated from the design stage. The Kalyani project, if executed to the standards that India's aviation infrastructure in India growth demands, will require exactly this kind of end-to-end engineering and project management discipline. That is the space IMARC Engineering occupies.