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Defence Ministry pushes indigenous design for development of 1,000-kg aerial bomb for IAF

April 04, 2026 4 min read Internal Security Science & Technology GS3
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What Happened

  • The Ministry of Defence (MoD) has issued an Expression of Interest (EoI) for the indigenous design and development of a 1,000-kg class aerial bomb for the Indian Air Force (IAF), aiming to replace the currently imported Mk-84 class general-purpose bombs procured from foreign Original Equipment Manufacturers (OEMs).
  • The proposed munition is described as a "natural fragmentation, high-calibre munition capable of generating high blast effect and significant peak over-pressure (PoP) against enemy targets."
  • The project is structured in two phases: Phase 1 involves design and development of six prototypes (live and inert) including associated tail units and equipment; Phase 2 is the procurement phase with a commercial Request for Proposal (RFP) to qualifying development agencies.
  • The system is required to be compatible with both Russian-origin (Su-30MKI) and Western-origin (Rafale) aircraft operated by the IAF.
  • Approximately 600 such aerial bombs are planned for procurement under the programme.
  • The development phase requires a minimum of 50% indigenous content.
  • The project is being executed under the Make-II category of the Defence Acquisition Procedure (DAP) 2020, followed by procurement under the Buy (Indian-IDDM) route.
  • The estimated timeline from EoI to contract signing is approximately 2.5 years.

Static Topic Bridges

Defence Acquisition Procedure (DAP) 2020 and Aatmanirbharta in Defence

The Defence Acquisition Procedure 2020 replaced the earlier Defence Procurement Procedure (DPP) 2016 and introduced several categories to prioritise indigenous design and manufacturing in defence procurement. The procedure establishes a clear hierarchy of acquisition categories that favours domestic production.

  • The acquisition category hierarchy (in order of preference): Buy (Indian-IDDM) → Buy (Indian) → Buy and Make (Indian) → Buy (Global - Manufacture in India) → Buy (Global).
  • IDDM stands for Indigenously Designed, Developed, and Manufactured, requiring at least 50% indigenous content on cost basis.
  • The Make-II category provides no government funding for prototype development but assures orders upon successful development and trials, incentivising private sector participation with guaranteed procurement.
  • Make-I category provides up to 70% government funding for prototype development.
  • The maximum permitted FDI under Buy (Indian-IDDM) and Make-II categories is 49%.
  • India's defence production has grown from approximately Rs 80,000 crore in 2019-20 to over Rs 1.27 lakh crore in 2023-24.

Connection to this news: The use of Make-II (no government funding for development) followed by Buy (Indian-IDDM) for procurement represents the government's preferred pathway for encouraging private sector innovation in defence while maintaining indigenous content requirements.

India's Defence Indigenisation Push

India has been the world's largest arms importer for much of the past decade but has made significant progress in reducing import dependence through indigenisation policies. The government has set a target of achieving $5 billion in defence exports and a defence production turnover of Rs 1.75 lakh crore by 2025.

  • Four Positive Indigenisation Lists have been published, listing over 500 items that cannot be imported after specified dates, creating a captive market for domestic manufacturers.
  • Defence exports have grown from approximately Rs 1,500 crore in 2016-17 to over Rs 21,000 crore in 2023-24.
  • The iDEX (Innovations for Defence Excellence) initiative engages startups and MSMEs in defence innovation, with over 400 challenges floated and 300+ contracts awarded.
  • The Defence Industrial Corridors in Uttar Pradesh (Lucknow-Kanpur-Agra-Aligarh-Jhansi-Chitrakoot) and Tamil Nadu (Chennai-Tiruchirappalli-Coimbatore-Salem-Hosur) aim to create manufacturing ecosystems.
  • DRDO, the Ordnance Factory Board (now corporatised as seven DPSUs), and private sector companies including BrahMos Aerospace, Bharat Forge, and L&T Defence form the indigenisation ecosystem.

Connection to this news: The move to indigenously develop the 1,000-kg aerial bomb, a munition currently imported from foreign OEMs, aligns with the broader policy of reducing dependence on foreign suppliers for critical defence hardware.

IAF's Multi-Platform Fleet and Interoperability Challenge

The Indian Air Force operates a mixed fleet of combat aircraft from multiple origins, including Russian-origin Su-30MKI (approximately 260 aircraft), French-origin Rafale (36 aircraft), and indigenous Tejas LCA (40+ delivered). This multi-platform fleet creates unique interoperability challenges, particularly for weapons and munitions.

  • The Mk-84 is a 2,000-pound (907 kg) general-purpose unguided bomb widely used by Western air forces, designed for targets requiring large blast effects.
  • The requirement for compatibility with both Russian and Western-origin aircraft means the bomb must meet different integration standards and delivery protocols.
  • India's indigenous munitions capability includes the HSLD (High Speed Low Drag) bomb series, SAAW (Smart Anti-Airfield Weapon), and precision-guided munitions developed by DRDO.
  • The IAF's future fleet will also include the AMCA (Advanced Medium Combat Aircraft) and TEDBF (Twin Engine Deck-Based Fighter), both indigenous platforms.
  • Standardisation of munitions across platforms reduces logistics complexity and enhances operational flexibility.

Connection to this news: The requirement that the new 1,000-kg bomb be compatible with both Su-30MKI and Rafale underscores the interoperability challenge, while indigenous development ensures long-term supply security without dependence on foreign OEMs during conflict situations.

Key Facts & Data

  • Bomb class: 1,000 kg (equivalent to Mk-84 class)
  • Planned procurement quantity: approximately 600 bombs
  • Development phase: 6 prototypes (live and inert)
  • Minimum indigenous content: 50%
  • Acquisition category: Make-II (development) → Buy (Indian-IDDM) (procurement)
  • Timeline: approximately 2.5 years from EoI to contract
  • Compatible aircraft: Su-30MKI (Russian-origin), Rafale (French-origin)
  • India's defence production (2023-24): over Rs 1.27 lakh crore
  • Defence exports (2023-24): over Rs 21,000 crore
  • DAP 2020 maximum FDI for IDDM: 49%