The Ministry of Defence signed a ₹449 crore contract on June 12, 2026, with Bengaluru-based Accord Software & Systems Pvt Ltd to procure 20 Enhanced Capability Global Navigation Satellite System (ECGNSS) Jammers for the Indian Navy. Procured under the rigorous Buy (Indian-IDDM) category with a minimum of 75% indigenous content, these systems are designed to degrade enemy satellite signals, deploy spoofing techniques, and execute deceptive jamming. This acquisition significantly boosts the Indian Navy's Electronic Warfare (EW) capabilities, ensuring the safe operation of naval vessels in contested environments while reinforcing the Aatmanirbhar Bharat initiative.
The Ministry of Defence officially signed a contract worth ₹449 crore to supply the Indian Navy with 20 Enhanced Capability Global Navigation Satellite System (ECGNSS) Jammers. The agreement was finalised on June 12, 2026, marking a significant step in upgrading the maritime force's electronic warfare arsenal. The primary trigger for this acquisition is the growing need to protect naval assets from hostile satellite navigation and tracking threats in increasingly contested waters.
The contract was inked on June 12, 2026, in New Delhi. The manufacturing and development will take place in Bengaluru, Karnataka, a major hub for India's aerospace and defence electronics sector. The operational deployment of these jammers will primarily occur across Indian Navy warships patrolling the critical and highly volatile Indian Ocean Region.
1. Signal Detection: The jammer continuously monitors the electromagnetic spectrum to detect incoming satellite navigation signals directed at adversary receivers.
2. Signal Degradation: Once identified, the system emits powerful interference signals to degrade the enemy's ability to acquire and track legitimate GNSS data.
3. Spoofing Techniques: The system can transmit deceptive, fake satellite signals to adversary platforms, tricking their navigation systems into calculating incorrect positions.
4. Deceptive Jamming: By overwhelming hostile receivers with corrupted data, the jammer effectively blinds enemy precision-guided munitions and drones relying on GNSS for targeting.
This procurement is critical for modernising India's defence posture. Tactically, it ensures the survivability of high-value naval assets in multi-threat environments by neutralizing enemy precision weapons. Economically, awarding a ₹449 crore contract to a domestic firm under the Buy (Indian-IDDM) category prevents capital outflow and stimulates the local defence manufacturing ecosystem. For UPSC aspirants, this links directly to GS Paper 3 (Science & Technology and Internal Security).
India's reliance on foreign electronic warfare (EW) systems was historically high. In 1990, the Defence Research and Development Organisation (DRDO) launched Project Sangraha to develop indigenous EW suites for the Navy. In 2020, the government introduced the positive indigenisation lists, restricting imports of various military electronics. The DAP 2020 further refined the Buy (Indian-IDDM) category, mandating higher domestic content, paving the way for advanced indigenous systems like the ECGNSS Jammers today.
Over the past five years, the Indian Navy has steadily inducted indigenous electronic warfare capabilities. In 2021, the MoD signed a contract with Bharat Electronics Limited (BEL) for the 'Shakti' EW system. In 2023, upgraded anti-drone systems with basic jamming capabilities were deployed on frontline warships. In early 2025, the Navy successfully tested advanced spoofing countermeasures during a major naval exercise in the Arabian Sea.
Globally, powers like the United States, China, and Russia possess highly mature GNSS denial and spoofing architectures. India has traditionally lagged in proprietary electronic warfare IP, often relying on Russian or Israeli systems. The induction of these 20 indigenous jammers demonstrates India's narrowing capability gap, placing it among a select group of nations that can domestically design and manufacture advanced maritime GNSS denial platforms.
The successful deployment of these 20 jammers will likely lead to follow-on orders for a wider array of naval platforms, including submarines and unmanned surface vessels. This contract sets a precedent for private sector participation in highly sensitive EW domains, likely encouraging further R&D investments by Indian tech firms. Furthermore, enhanced spoofing capabilities will force adversaries in the Indian Ocean Region to rethink their reliance on satellite-guided long-range munitions.
Core Concept: Electronic Warfare and GNSS Jamming
Q1. Which company was awarded the ₹449 crore contract to manufacture the ECGNSS Jammers for the Indian Navy? [Easy]
A) Bharat Electronics Limited
B) Hindustan Aeronautics Limited
C) Accord Software & Systems Pvt Ltd
D) Tata Advanced Systems Limited
Answer: C
Explanation: Accord Software & Systems Pvt Ltd, based in Bengaluru, was awarded the ₹449 crore contract by the Ministry of Defence.
Q2. Under which specific procurement category were the 20 ECGNSS Jammers acquired by the Ministry of Defence? [Easy]
A) Buy (Global)
B) Buy (Indian-IDDM)
C) Buy and Make (Indian)
D) Make II
Answer: B
Explanation: The jammers were procured under the Buy (Indian-Indigenously Designed, Developed and Manufactured) category.
Q3. What is the minimum required indigenous content for the ECGNSS Jammers procured in the June 2026 contract? [Moderate]
A) 40%
B) 50%
C) 60%
D) 75%
Answer: D
Explanation: The contract specifies that the advanced systems must feature a minimum of 75% indigenous content.
Q4. What is the primary operational function of the newly acquired ECGNSS Jammers for the Indian Navy? [Moderate]
A) To launch precision-guided torpedoes
B) To intercept underwater submarine communications
C) To degrade adversary satellite signals and use spoofing techniques
D) To enhance the fuel efficiency of naval gas turbines
Answer: C
Explanation: The jammers are designed to degrade enemy satellite signal acquisition and execute signal spoofing and deceptive jamming.
Q5. The term GNSS, often discussed in modern defence contexts, stands for: [Moderate]
A) Geospatial Network Security System
B) Global Navigation Satellite System
C) Guided Naval Strike Squadron
D) Geostationary Node Sensing Satellite
Answer: B
Explanation: GNSS stands for Global Navigation Satellite System, which includes networks like GPS, GLONASS, and NavIC.
Q6. Why is the acquisition of ECGNSS Jammers particularly significant for naval warships in a multi-threat environment? [Tricky]
A) They allow warships to operate silently without emitting thermal signatures.
B) They neutralise the enemy's ability to use satellite-guided precision munitions against the ship.
C) They act as a kinetic defence system capable of shooting down incoming missiles.
D) They encrypt the warship's internal Wi-Fi networks to prevent cyber attacks.
Answer: B
Explanation: By jamming and spoofing GNSS signals, the system blinds incoming precision-guided munitions that rely on satellite navigation to find their targets.
Q7. Which of the following is a direct consequence of procuring equipment under the Buy (Indian-IDDM) category? [Tricky]
A) The intellectual property and design must originate within India.
B) The equipment must be entirely assembled in a foreign country before import.
C) Only public sector undertakings (PSUs) are permitted to bid for the contract.
D) The technology must be transferred from a foreign vendor to an Indian company.
Answer: A
Explanation: The IDDM category mandates that the design and development of the system must originate within India, ensuring complete intellectual property ownership domestically.
Q8. Which Indian navigation system is most directly comparable to the American GPS and is part of the broader GNSS ecosystem? [Tricky]
A) Bhuvan
B) GAGAN
C) NavIC
D) RISAT
Answer: C
Explanation: NavIC (Navigation with Indian Constellation) is India's indigenous regional satellite navigation system, functioning similarly to GPS within its coverage area.
PYQ 1:
With reference to the recent ₹449 crore defence contract signed in June 2026, the ECGNSS Jammers procured for the Indian Navy primarily aim to counter which type of threat?
A) Acoustic homing torpedoes
B) Hostile satellite navigation and tracking
C) High-altitude hypersonic glide vehicles
D) Unauthorised maritime boarding operations
Answer: B
Explanation: The ECGNSS jammers specifically target and degrade hostile satellite navigation (GNSS) signals and tracking systems.
PYQ 2:
Consider the following statements regarding the Buy (Indian-IDDM) procurement category:
1. It stands for Indigenously Designed, Developed and Manufactured.
2. Equipment under this category can be designed abroad but must be manufactured in India.
3. The recent contract for 20 ECGNSS Jammers for the Indian Navy falls under this category.
Which of the above statements is/are correct?
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2 and 3
Answer: B
Explanation: Statement 2 is incorrect because the IDDM category strictly requires the design to originate in India, not abroad. Statements 1 and 3 are correct.
PYQ 3:
Match the following Global Navigation Satellite Systems with their respective countries/regions:
1. GPS — a. Russia
2. GLONASS — b. India
3. Galileo — c. USA
4. NavIC — d. European Union
Select the correct code:
A) 1-c, 2-a, 3-d, 4-b
B) 1-c, 2-d, 3-a, 4-b
C) 1-a, 2-c, 3-b, 4-d
D) 1-b, 2-a, 3-d, 4-c
Answer: A
Explanation: GPS belongs to the USA, GLONASS to Russia, Galileo to the EU, and NavIC is India's indigenous system.
Question 1 (150 words): Discuss the significance of the recent acquisition of ECGNSS Jammers for the Indian Navy in the context of modern maritime warfare.
The ₹449 crore acquisition of 20 Enhanced Capability Global Navigation Satellite System (ECGNSS) Jammers on June 12, 2026, is a critical upgrade for the Indian Navy in modern maritime warfare. Tactically, modern naval conflicts rely heavily on precision-guided munitions, unmanned aerial vehicles, and real-time situational awareness, all of which depend on continuous GNSS feeds. The new jammers allow Indian warships to degrade adversary satellite signals and deploy spoofing techniques, effectively blinding hostile targeting systems in contested environments like the Indian Ocean Region. Furthermore, this procurement bolsters strategic self-reliance. By awarding the contract to Bengaluru-based Accord Software & Systems under the rigorous Buy (Indian-IDDM) category with a minimum of 75% indigenous content, India is actively reducing its reliance on foreign original equipment manufacturers. Going forward, sustaining such private sector partnerships will be vital to ensuring India maintains an edge in the rapidly evolving domain of electronic warfare.
Question 2 (250 words): Analyse how the Defence Acquisition Procedure's Buy (Indian-IDDM) category is transforming India's defence manufacturing ecosystem, using the recent ECGNSS Jammer procurement as a case study.
The Defence Acquisition Procedure (DAP) 2020, particularly through its apex Buy (Indian-Indigenously Designed, Developed and Manufactured) category, serves as the cornerstone of the government's Aatmanirbhar Bharat initiative in the defence sector. Historically, India has been one of the world's largest importers of arms, suffering from capital flight and critical vulnerabilities due to reliance on foreign technology. The IDDM mandate completely shifts this paradigm by ensuring that advanced military hardware is not merely assembled in India, but conceptually designed and intellectually owned by domestic entities.
The June 12, 2026 contract, worth ₹449 crore for 20 ECGNSS Jammers, perfectly illustrates this transformation. Awarded to a private domestic firm, Accord Software & Systems Pvt Ltd, the contract guarantees a minimum of 75% indigenous content. Economically, this channels significant capital directly into the domestic tech ecosystem, nurturing highly skilled jobs and encouraging private sector R&D in complex fields like electronic warfare. Politically and strategically, it guarantees that sensitive technologies, such as satellite signal spoofing and deceptive jamming, are free from hidden foreign kill-switches or sanctions-related supply chain disruptions.
Furthermore, integrating private players into the core defence supply chain disrupts the traditional monopoly of Public Sector Undertakings (PSUs), fostering a competitive, high-quality manufacturing environment. To fully realise the goal of becoming a global defence exporter, the government must ensure sustained funding cycles, timely contract executions, and deeper integration of academia with private defence manufacturers to maintain technological superiority in an increasingly contested geopolitical landscape.
For Prelims, examiners highly prefer testing the exact nomenclature of procurement categories like "Buy (Indian-IDDM)", the minimum percentage of indigenous content (75%), and matching the specific vendor (Accord Software & Systems) to the equipment. In Mains (GS Paper 3), this event is a perfect case study to cite when writing answers on Aatmanirbhar Bharat, indigenisation of technology, and maritime security in the Indian Ocean. In an Interview setting, expect questions on the strategic necessity of electronic warfare versus traditional kinetic weapons. A high-probability prediction for upcoming exams is a direct objective question on the specific capabilities of the ECGNSS — specifically its role in GNSS spoofing and deceptive jamming.