iDEX: A Complete Guide to India's Defence Innovation Funding Scheme

For decades, India's armed forces relied almost entirely on large public sector defence PSUs and imported systems, with little structured pathway for a startup or individual innovator to actually get a technology in front of the military, let alone get it funded, tested, and procured. Bridging that gap needed more than good intentions. It needed a dedicated framework connecting the Defence Forces' real capability gaps to India's innovation ecosystem.

iDEX, Innovations for Defence Excellence, is the Ministry of Defence's answer to that need. Launched in April 2018 and later formalised as a central sector scheme with budgetary support of Rs. 498.78 crore for the period 2021 22 to 2025 26, iDEX was built to provide financial support to nearly 300 startups, MSMEs, and individual innovators, along with roughly 20 partner incubators, through the Defence Innovation Organisation. It has since become India's flagship defence tech startup programme, and, notably, a genuine path to military procurement, not just a grant.

The Opportunity: What iDEX Actually Offers

• Direct, non dilutive grant funding: selected startups receive grants of up to Rs. 1.5 crore over roughly 18 months to prototype and validate their solutions under the Support for Prototype and Research Kickstart framework, known as SPARK.
• A bigger ticket track for scaling ventures: iDEX Prime is designed for projects at Technology Readiness Level 4 and above that have outgrown the base grant, supporting funding needs up to Rs. 10 crore for startups ready to scale further.
• Challenge driven, not application driven: funding is tied to specific technology problems, called Defence India Startup Challenges and Open Challenges, published directly by the Army, Navy, Air Force, and Ministry of Defence, rather than open ended proposals.
• A genuine pathway to procurement: successful prototypes developed under iDEX have a direct pathway to procurement by the Indian Armed Forces, since iDEX is formally recognised as a procurement route under the Defence Acquisition Procedure 2020, meaning a startup is not just building a prototype, it is building toward a real customer.
• Test infrastructure access: winners get access to defence test ranges, labs, and infrastructure to validate and refine their solutions, resources that would otherwise be entirely out of reach for a small startup.
• Investor connections through the iDEX Investors Hub: iDEX has facilitated MoUs with banks, financial institutions, and investors specifically to help defence startups access private capital alongside government grants. Recent iDEX backed startups have gone on to secure multi million dollar private investment commitments off the back of their iDEX track record.
• Regular, active challenge cycles: the programme continues to expand. Recent editions have launched dozens of new problem statements at once from the Army, Navy, Air Force, Coast Guard, and Defence Space Agency, alongside parallel sub programmes like ADITI for more advanced deep tech challenges.

Roughly 150 startups have already been recognised as winners across DISC rounds, receiving SPARK funds to build their prototypes, a meaningful track record for a scheme built around real procurement outcomes rather than funding alone.

Who is eligible

• Startups and MSMEs with relevant technology capabilities in defence or aerospace domains.
• Individual technology innovators with a proof of concept relevant to a posted Defence India Startup Challenge or Open Challenge. Individual innovators must typically form a startup entity before signing the final grant agreement.
• R&D institutes and academia working on technology with genuine defence application potential.
• Applicants should have current DPIIT Startup India recognition, which strengthens applications significantly even where not strictly mandatory.

How the process works

1. Visit the iDEX portal and browse the active challenges section to find Defence India Startup Challenges or Open Challenges currently posted by the Army, Navy, Air Force, or Ministry of Defence.
2. Create your innovator profile on the portal and ensure your DPIIT recognition is current and correctly linked.
3. Prepare a technical proposal that directly addresses the specific challenge's requirements. Applying with a technology that does not map to a published challenge significantly reduces selection odds and wastes an application slot.
4. Submit within the specified deadline. A technical committee evaluates submissions, and shortlisted applicants are typically called for a presentation.
5. Selected startups sign a grant agreement with the Defence Innovation Organisation, receive an initial funding tranche, and begin prototype development, with further funding released in tranches tied to milestone achievement.
6. Successful, validated prototypes are then evaluated for actual procurement by the relevant defence service.

A practical note: certain defence technology domains require security clearance for founders and key technical personnel, and this process can take three to six months. Founders should start this early, ideally right after incorporation, rather than waiting until deep into the prototype development stage.

The Institutions Powering iDEX

iDEX operates through the Defence Innovation Organisation, a not for profit body set up by the Ministry of Defence specifically to execute the scheme independently of traditional defence procurement bureaucracy. This structure lets iDEX move faster and engage more directly with startups than conventional defence contracting typically allows, while still keeping a clear line to the Army, Navy, Air Force, and Defence Space Agency, who define the actual technology challenges the programme funds. A few opportunities currently open under iDEX include: