Most anti-drone systems stand still and wait for the threat to come to them. Indrajaal, the Hyderabad defence-technology company built by Grene Robotics, has spent years building the opposite idea: an airspace shield that watches a whole region at once — and, with its newest vehicle, one that patrols on the move.
The company’s flagship system, Indrajaal, is an AI-powered counter-drone platform designed to detect, identify, classify, track and neutralise aerial threats in real time. The company calls it the world’s only autonomous wide-area counter-unmanned aircraft system, and says it can defend areas of up to 4,000 square kilometres, with 360-degree protection against everything from nano and micro drones to swarms, loitering munitions and high-altitude long-endurance aircraft.
Twelve layers, one shield
Indrajaal is built from 12 proprietary technology layers that work together like building blocks. At its heart is SkyOS, the company’s C5ISRT platform, which brings command, control, communications, computers, cyber defence, intelligence, surveillance, reconnaissance and targeting into a single AI-driven system. Around it sit layers with names that read like a cast list: greneOS for autonomous resource planning, DefOS for unified command and control, HiveMind, the AI computer that plans and executes missions, and greneEYE, which uses machine vision to identify threats.
The sensing net blends radar, electro-optical and infrared sensors, radio-frequency detection and machine vision, fused into one picture of the sky. The response is layered too: cyber takeover that can seize control of a hostile drone, soft-denial and jamming, and hard-kill interception by the company’s own interceptor drones. The idea is a single coordinated network instead of a collection of isolated systems, each guarding its own small patch of sky.
Indrajaal comes in versions for different worlds: Indrajaal Infra for critical infrastructure, Urban for cities and public events, Military for defence installations, and Maritime for naval and coastal assets. The company, founded by Kiran Raju along with Wing Commander Sai Mallela, employs around 100 specialists in AI, robotics, software engineering and defence technology, and tests its systems at a 79-acre facility in Hyderabad.
The shield takes the wheel
On 26 November 2025 in Hyderabad, Indrajaal unveiled the Ranger, which it calls India’s first fully mobile, AI-powered anti-drone patrol vehicle. Where the original Indrajaal guards a fixed area, the Ranger carries the same idea onto the road: a purpose-built combat vehicle on an all-terrain 4×4 chassis that detects, tracks and neutralises hostile drones while it is moving.
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The Indrajaal Ranger at its Hyderabad unveiling. Image: Indrajaal Drone Defence.
The numbers tell the Ranger’s story in concentric rings. The company says it detects threats up to 10 kilometres away, can take over a hostile drone by cyber means within 5 kilometres, jams and soft-kills within 3 kilometres, and sends interceptor drones within 2 kilometres — an overall mitigation envelope of 4 kilometres. On board, GNSS spoofing disrupts rogue navigation, radio-frequency jamming breaks control links, and the SkyOS autonomy engine fuses every sensor into one decision, so detection can turn into neutralisation within seconds. The vehicle needs only two operators, and the company says it can operate even in GPS-denied environments.
That mobility changes where the shield can go. The Ranger is designed for border roads, canal belts, agricultural stretches, critical infrastructure and dense urban pockets — places where a fixed installation cannot follow the threat, and where cross-border drones have been used to smuggle weapons, explosives and narcotics. It is, in the company’s telling, a patrol vehicle first and a weapons platform second: it watches while it moves, assesses threats autonomously, and intercepts instantly.
From trials to the front line
The shield has already moved from demonstration to deployment. In January 2026, Indrajaal said it had secured multiple contracts worth Rs 100 crore from the Ministry of Defence for its multi-layered autonomous anti-drone systems, with the Indian Navy deploying them at ports on the western seaboard and the Indian Army deploying them along the eastern border and other strategic locations. The company says its systems were deployed at the Western Naval Command during Operation Sindoor, and its Indrajaal Infra variant went operational at a Gujarat naval port during the same operation.
Indrajaal’s newest chapter is being commercialised in partnership with Sigma Advanced Systems, taking the Ranger from a Hyderabad unveiling toward wider service. From a 4,000-square-kilometre fixed shield to a vehicle that carries that shield down a border road, the company is building the same vision at every scale: an Indian sky that can sense, decide and respond at machine speed, with technology designed and built at home.
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