India Signs ₹449 Crore Deal For Advanced GNSS Jammers To Strengthen Navy’s Electronic Warfare Capability
Our take

The recent Indian Navy acquisition of advanced GNSS jammers, secured through a ₹449 crore deal, represents a significant escalation in maritime electronic warfare capabilities and reflects a broader trend of nations prioritizing operational resilience in a contested digital landscape. This development, occurring amidst heightened geopolitical tensions – as evidenced by recent disruptions to maritime trade routes and increased naval activity – underscores the growing vulnerability of reliance on global navigation satellite systems (GNSS). The recent events highlighting the disruption of LNG tanker tracking signals through the Strait of Hormuz [Three LNG Tankers Exit Strait Of Hormuz With Tracking Signals Off As US-Iran Tensions Escalate] exemplify the risks inherent in dependence on these systems, and India’s investment directly addresses this concern. Furthermore, the ripple effect on global shipping, with container rates soaring due to ongoing instability [Iran War Sends Global Container Shipping Rates Soaring Over 100% As Fuel Costs Surge], demonstrates the interconnectedness of maritime security and economic stability, factors that this new capability directly impacts.
The strategic implications of deploying GNSS jammers are multifaceted. Beyond protecting naval assets from GPS-guided missile attacks or electronic surveillance, these systems can disrupt enemy navigation, communications, and targeting systems, granting a crucial advantage in contested waters. The Indian Ocean, a vital trade route and area of strategic importance, presents a complex operational environment, and the ability to deny or degrade GNSS signals is increasingly vital for maintaining maritime domain awareness and projecting power. This capability isn’t simply reactive; it’s a proactive step toward ensuring operational freedom and mitigating vulnerabilities in an era where electronic warfare is becoming a primary battleground. Understanding the future wave climate, particularly in regions like the Northwest Mediterranean, [Future wave climate in the NW Mediterranean from multi-model CMIP6 wind projections] also highlights the broader context of environmental and strategic challenges facing maritime forces – challenges that require increasingly sophisticated technological responses.
The acquisition also signals a shift away from a purely passive reliance on global infrastructure towards a more self-reliant and defensively robust posture. While GNSS provides unparalleled accuracy and accessibility for navigation, its inherent vulnerabilities – susceptibility to jamming, spoofing, and cyberattacks – have become increasingly apparent. This investment in electronic warfare capabilities suggests a recognition of this vulnerability and a commitment to developing indigenous solutions to mitigate it. It’s a move consistent with broader trends in defense modernization across Asia, where nations are seeking to reduce dependence on foreign technology and establish greater control over their own security infrastructure. The calibrated deployment of these jammers, however, will require careful consideration of international regulations and the potential for unintended interference with civilian navigation systems.
Looking ahead, the integration of these GNSS jamming capabilities with India’s broader maritime surveillance network and artificial intelligence-powered data analytics platforms will be crucial. The true value of this investment will be realized not just in the hardware itself, but in the development of sophisticated operational doctrines and integrated data ecosystems that leverage real-time ocean intelligence. The effectiveness of these systems will also depend on ongoing validation and empirical testing under realistic operational conditions. A key question to watch is how India will balance the need for operational security with the imperative to maintain interoperability with allied navies and avoid escalating tensions through the indiscriminate use of electronic warfare measures.


India’s Ministry of Defence (MoD) has signed a contract worth ₹449 crore with Bengaluru-based Accord Software and Systems Private Limited (ASSPL) for the procurement of 20 Enhanced Capability Global Navigation Satellite System (ECGNSS) Jammers for the Indian Navy.
The contract was signed on June 10, 2026, in New Delhi in the presence of Defence Secretary Rajesh Kumar Singh.
It has been awarded under the Buy (Indian-Indigenously Designed, Developed and Manufactured) category and requires a minimum indigenous content of 75%.
According to the Defence Ministry, the ECGNSS Jammers are designed to degrade the satellite signal acquisition and tracking capabilities of adversary GNSS receivers. The systems can also carry out signal spoofing and deceptive jamming.
The ministry said the induction of these systems will help Indian Navy ships operate safely in multi-threat environments by improving their ability to counter electronic warfare threats.
The procurement is part of the government’s efforts to strengthen indigenous defence manufacturing under the Aatmanirbhar Bharat and Make in India initiatives.
The ministry said the contract will also support the country’s maritime security architecture while promoting the development and production of advanced defence technologies within India.
Accord Software and Systems, established in 1991, has experience in GNSS technologies and electronic warfare solutions. The company will supply all 20 ECGNSS Jammers under the contract.
The Defence Ministry described the deal as another step towards enhancing India’s defence capabilities and increasing the use of domestically developed military technology.
What Are ECGNSS Jammers?
ECGNSS (Enhanced Capability Global Navigation Satellite System) Jammers are advanced electronic warfare systems designed to interfere with or manipulate satellite-based navigation signals used by an adversary.
Modern military forces rely heavily on GNSS systems such as:
GPS (United States)
GLONASS (Russia)
BeiDou (China)
Galileo (European Union)
NavIC (India)
These satellite systems provide positioning, navigation, and timing information for ships, aircraft, drones, missiles, and ground forces.
What Do ECGNSS Jammers Do?
The Indian Navy’s ECGNSS Jammers are designed to:
1. Jam Satellite Signals
They can disrupt the reception of GNSS signals by enemy platforms, making it difficult for them to determine their exact location or maintain navigation accuracy.
2. Degrade Tracking and Acquisition
The systems can reduce an adversary’s ability to acquire and track satellite signals, affecting navigation and targeting functions.
3. Spoof GNSS Signals
Instead of simply blocking signals, the jammer can transmit false navigation data. This can cause an adversary’s receiver to calculate an incorrect position.
4. Conduct Deceptive Jamming
The system can mislead hostile receivers by feeding them manipulated signals, potentially causing confusion during military operations.
Why Does the Indian Navy Need Them?
Modern naval warfare increasingly includes electronic warfare, where forces attempt to disrupt an opponent’s sensors, communications, and navigation systems.
References: PIB, newsonair
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