India’s defence sector has, over the past decade, moved from being viewed primarily through a strategic or security lens to becoming an increasingly visible component of the country’s industrial and regional economic policy.

The two dedicated Defence Industrial Corridors (DICs) one in Uttar Pradesh with six nodes and the other in Tamil Nadu with five nodes are an attempt to convert the demand for defence procurement into manufacturing capacity, jobs and export revenues in specific geographies.

This article explores the nature of the corridors, the evidence available to date on their economic contribution, and the questions that remain unanswered as the model develops.

Why Corridors, Not Just Procurement Reform?

Defence policy has been based on two interconnected levers since 2018: procurement reform, with the Defence Acquisition Procedure 2020 and Defence Procurement Manual 2025, which favour domestic sourcing, and physical infrastructure, with the DICs, which aim to reduce the barriers for private companies and MSMEs. The idea of clustering suppliers, testing facilities and OEMs in defined nodes is to lower transaction costs and enable regional economies to benefit from value that would otherwise be concentrated around existing defence public sector undertakings (DPSUs) or foreign suppliers. This directly enhances the aims of Make in India Program.

The corridors sit within a broader trajectory of domestic defence output, which Ministry of Defence data shows growing substantially over the past decade.

The FY 2025-26 output was 15.6% higher than the previous year, and it has nearly doubled since FY 2020-21. However, exports are relatively small compared to other arms exporting nations, but grew faster than production, suggesting that some of the additional manufacturing capacity is being used to supply overseas customers.

The aforesaid targets of ₹3 lakh crore in production and ₹50,000 crore in exports by 2029 are based on a continued orientation towards the corridor model of capacity addition, in addition to the DPSU model.

The Uttar Pradesh Defence Industrial Corridor (UPDIC)

is the country’s first greenfield defence manufacturing corridor, located in the cities of Lucknow, Kanpur, Jhansi, Agra, Aligarh and Chitrakoot. The corridor aims to establish a completely new industrial base, based on strategic investments in infrastructure, coupled with targeted industrial policies, rather than relying on an existing aerospace ecosystem.

The six nodes have been selected in view of their complementary industrial strengths, with Lucknow being a defence R&D hub as well as an administrative hub, Kanpur being an engineering and textile hub, Aligarh being a precision lock and hardware manufacturing hub, and Jhansi being a strategic location for heavy defence production.

The corridor concentrates on manufacturing of small arms and ammunition, armoured platforms, missile systems, aerospace components, defence electronics and advanced materials. In addition to land allocation, the Government also provides common testing facilities, logistics parks, skill development centres, Centres of Excellence and policy measures to incentivize private investments.

Progress so far:

• Investment commitments exceeding ₹30,000 crore as of 2025, reflecting strong industry confidence in the corridor.
• Establishment of the BrahMos Aerospace Integration and Testing Facility at Jhansi, marking a significant shift from licensed production towards indigenous design and manufacturing.
• Over 180 Memoranda of Understanding (MoUs) signed with defence and aerospace companies, accelerating industrial development.
• Development of common testing facilities, Centres of Excellence, and defence-specific infrastructure in collaboration with institutions such as DRDO and IIT Kanpur.
• More than 50,000 direct and indirect jobs are expected to be generated, contributing to regional industrialisation and skill development.
• Greater integration of MSMEs into defence supply chains, strengthening domestic value addition and localisation of defence production.
• Emergence as a manufacturing hub for missile systems, defence electronics, armoured platforms, aerospace components, and ammunition, supporting India’s defence indigenisation objectives.

The Tamil Nadu Defence Industrial Corridor

In contrast, the Tamil Nadu Defence Industrial Corridor (TNDIC) follows a brownfield development model, capitalising on the state’s well-established industrial ecosystem. The corridor is spread across Chennai, Coimbatore, Hosur, Salem and Tiruchirappalli, encompassing various strengths in the nation’s defence production network: automotive, aerospace, electronics, metallurgy, and precision manufacturing. It aims to expand existing manufacturing capabilities, not to establish a new industrial base, by developing them into a high-value sector for manufacturing defence systems and aerospace products.

Specialty of the corridor is aerospace structures, aircraft components, defence electronics, naval systems, missile subsystems, precision machining, and advanced engineering. It has a competitive advantage due to a large network of Tier-I and Tier-II suppliers, globally integrated manufacturing companies, research institutes, and port connectivity, which allows companies to be involved in the home procurement and international defence value chains. The Tamil Nadu government has ambitious plans to draw in defence and aerospace investments of ₹75,000 crore by 2032 and make the state the top defence manufacturing and export hub in India.

The corridor also facilitates innovation exchange between industry, academia and research institutes to spearhead advancement of new technologies such as Unmanned systems, Artificial Intelligence, Advanced materials, Defence electronics etc.

Progress so far:

• Over ₹26,000 crore in investment commitments, with a target of ₹75,000 crore by 2032.
• Attraction of leading OEMs and defence firms including HAL, BEL, L&T Defence and Data Patterns.
• Expansion of common testing facilities, Centres of Excellence and industry-academia partnerships.
• Development of a dense MSME supplier ecosystem integrated into domestic and global defence value chains.
• Strengthened India’s aerospace and defence export capabilities through its advanced manufacturing base and port connectivity.

The conversion rate of proposed to realised investment is around 25-33% across both corridors, which is a reflection of the performance of the model against its own targets and is a common feature of large industrial corridor projects in India, not just defence.

The corridors are also significant from a regional economic perspective, as they are home to defence-related jobs in areas that are not typically associated with industrial development, like Bundelkhand in UP or the Hosur-Salem corridor in TN. This is in line with the declared goal of leveraging the procurement of arms to stimulate sub-state regional development instead of just funnelling it through existing industrial clusters in Bengaluru, Pune or Hyderabad.

The wider literature on Indian industrial corridors (based on NITI Aayog’s 2019 assessment of corridors like the Delhi-Mumbai Industrial Corridor) suggests that similar infrastructure-led corridor projects in India have created more than 200,000 jobs and led to a measurable increase in export volumes in the region between 2017 and 2023, providing some external validation for the employment numbers being projected for the defence corridors specifically.

The second structural characteristic is the position of MSMEs as second and third tier suppliers to DPSUs and larger private primes within the nodes. The policy goal is to reduce the upfront investment costs that smaller companies must make to get into a market that has traditionally been dominated by a handful of large, often state-owned, manufacturers, as reflected in the single-window clearance systems in the corridors (e.g., Nivesh Mitra in UP). Whether this means that MSMEs will be able to participate in the economy in a sustainable way, rather than a few big investments in MSMEs (like the Adani Defence ammunition plant in Kanpur or the BrahMos Aerospace in Lucknow) taking the lion’s share of realised capital is not yet fully answered by the data publicly available.

Learning from Global Defence Clusters

The success of existing defence manufacturing clusters has shown that competitiveness is not just about production capacity, but also about continuous investment in innovation, research and industrial ecosystems. In countries with well-established defence sectors, there are specialised clusters of defence manufacturers, research institutes, universities, start-ups and government agencies that foster technological innovation and export expansion.

Conclusion

Established clusters in the global defense industry show how innovation and competitive growth is driven by an industrial ecosystem, not merely by individual manufacturing companies. The focus on innovation, public-private partnership, trained human resources, a strong ecosystem of suppliers and export orientation offers significant value to India’s Defence Industrial Corridors as they strive to expand their capabilities and make India’s industry more competitive in the international market.

India’s corridors have already created the ground for this with substantial investments, boosted local manufacturing, and brought MSMEs to the defence industry and its supply chains, as well as raised export potential. Their enduring success, however, hinges on the extent to which investment pledges are realized in terms of production, innovation, and competitively strong companies on a global scale. To secure these outcomes, policy stability will be essential, projects will need to be completed more quickly, the private sector will need to be further engaged, links between academia and industry will need to be strengthened, and research and development will need to be sustained.

Defence Industrial Corridors are not just about improving national security but a comprehensive economic transformation plan. They can contribute significantly to the development and competitiveness of a region by supporting advanced manufacturing, creating skilled jobs, promoting technology-based industries and decreasing reliance on imports. With proper execution, these corridors will not only enable India to become a self-reliant defence producer, but will also make it a more significant presence in the global defence manufacturing and export market, bolstering the country’s aspiration to become a developed economy by the year 2047 under the Viksit Bharat vision.