India Mobile Air Defence System has become one of the Indian Army’s highest modernisation priorities as drone warfare, loitering munitions and precision-guided attacks reshape the future battlefield. From ADGM-SP to indigenous development, this article examines India’s evolving mobile air defence capability, key procurement challenges and the road ahead. India’s Mobile Air Defence System has become one of the Indian Army’s highest priorities as drone warfare and precision-guided attacks reshape the modern battlefield.
Table of Contents
- Who Is India Mobile Air Defence System Actually Meant to Stop?
- The War India Just Fought, and the One Everyone Keeps Forgetting
- Range Isn’t the Whole Spec Sheet
- The Russian Catch Nobody Mentions in the Pitch
- What “Efforts Are Ongoing” Actually Means on the Ground
- A Fairer Comparison Than Three Systems Allows
- Where Does a Gun-Missile Truck Actually Fit in the Kill Chain?
- The Money Question Nobody Asked Out Loud
- Guns and Missiles Aren’t the Last Word
- FAQs
On the night of May 8, 2025, more than 600 drones crossed the western border in a single wave — Pakistan’s response to India’s strikes two days earlier under Operation Sindoor. Songar quadcopters, Yiha-III loitering munitions, decoys meant to map out Indian radar coverage: all of it aimed at military and civilian targets stretching from Srinagar to Bathinda. Almost none of it got through. The Akashteer network, working alongside the S-400 and a scattering of Spyder batteries, picked the threats apart in real time. India Mobile Air Defence System is undergoing a major transformation to counter emerging aerial threats.
It’s probably the single best argument India has had in years for why its tanks, infantry combat vehicles and self-propelled artillery need an air defence umbrella that can move at the same speed they do, see everything around them, and shoot before a drone costing a few thousand dollars gets a clean shot at a multi-million-dollar tank. It’s also, oddly, the moment that exposes how thin the usual pitch for a new Air Defence Gun Missile System (Self-Propelled) — ADGM (SP) — really is once you put it next to what actually happened in May 2025.
The case for a mobile air defence system protecting India’s mechanised forces isn’t in dispute. What’s missing from most accounts of the programme — including the version built around the 2022 RFI and the Pantsir MoU — is the harder set of questions: which threats, at what altitude, bought from whom, paid for with what, and built on whose timeline. Here’s what a fuller account of India’s mobile air defence system push needs to grapple with.
Who Is India Mobile Air Defence System Actually Meant to Stop?
Most arguments for ADGM (SP) start and end with “drones, helicopters and fighter aircraft.” That’s true as far as it goes, but it skips the part that actually decides what kind of system gets built.
China’s PLA fields the Wing Loong II and the CH-4B along the Tibetan plateau — medium-altitude, long-endurance UAVs built for surveillance and precision strikes, not the kind of target a 1980s-vintage Tunguska radar was ever tuned for. Pakistan’s western front, as Operation Sindoor showed, leans on a mix of Turkish-derived Songar quadcopters, Yiha-III loitering munitions, and whatever Bayraktar-style and indigenous Burraq stock it can field, fired in saturating numbers rather than as single high-value platforms.
That distinction — quantity versus quality — matters more than the usual pitch lets on. An air defence regiment built around shooting down a single expensive fighter jet is a poor trade against a swarm of cheap quadcopters sent specifically to burn through missile stocks and map radar positions, which is exactly the tactic Pakistan tried on the night of 8th May. Cruise missiles change the calculation again: they fly low, fast and often along terrain-masking routes, demanding a different detection and reaction-time profile than a helicopter loitering at altitude.
None of the systems the Army currently leans on — the Tunguska M1, the Schilka, the OSA-AK and the Strela-10M — were designed with small, low radar-cross-section drones in mind.
Their radars were built for an era when the smallest credible threat was a helicopter, not a sub-2kg quadcopter. Whether the systems shortlisted for ADGM (SP) can reliably pick up that signature at a range that buys real reaction time is the first question any procurement document should answer, and it rarely gets asked in public.
The War India Just Fought, and the One Everyone Keeps Forgetting
If there’s one thing the standard framing of ADGM (SP) gets wrong, it’s leading with Galwan and jumping straight to procurement timelines. The more instructive case studies sit elsewhere — one of them barely a year old.
Start with Nagorno-Karabakh in 2020. Azerbaijan used Bayraktar TB2 drones, cheap by any military standard, to systematically pick apart Armenian armoured columns and air defence batteries. By Baku’s own account, Turkish-made drones accounted for an S-300 system, several Tor and Osa batteries, and dozens of armoured vehicles — the exact kind of mechanised formation an ADGM (SP) programme exists to protect.
It wasn’t an isolated event either; the same pattern showed up again in Russia’s invasion of Ukraine, where mechanised columns without organic, mobile air cover were picked off by loitering munitions in numbers that surprised even seasoned planners.
Then there’s the system at the centre of India’s own interim option. The Pantsir — the platform Bharat Dynamics Limited signed an MoU with Rosoboronexport over — has one of the worst publicly documented records against small drones of any modern air defence system. Open-source trackers put combined Pantsir losses in Syria and Libya at roughly 23 units, mostly to Turkish Bayraktar TB2s and Anka-S drones working alongside ground-based jamming; Israeli strikes accounted for at least one more near Damascus.
Analysts who’ve studied the losses point to a recurring pattern — batteries operating without overlapping radar cover, a “dead zone” close to the launcher that small, low-flying drones could exploit, and crews trained for single high-value targets rather than saturation attacks.
That doesn’t make Pantsir worthless. Its missile reach and gun combination remain genuinely useful against helicopters, fixed-wing aircraft and larger cruise missiles. But recommending it as a stopgap without engaging with why it kept losing to the exact category of threat — small, cheap, swarming drones — India is most likely to face on its western front is a gap that needs addressing before a contract is signed, not after.
Range Isn’t the Whole Spec Sheet
The usual pitch for ADGM (SP) settles on a single number — engagement out to “6 km or more” — and moves on. Industry reporting since the 2022 RFI suggests the Army has actually been thinking closer to 8–10 km, but even that leaves out most of what decides whether a system works in the terrain India actually fights in.
Altitude is the obvious gap. A system optimised for plains and deserts behaves differently above 4,500 metres in Ladakh, where thinner air degrades missile aerodynamics and changes radar propagation in ways that don’t show up on a brochure spec sheet. DRDO’s own Zorawar light tank — the chassis proposed for the indigenous ADGM-SP — was built and trial-tested specifically because heavier Russian and Western platforms struggle in exactly this environment. Whether Pantsir, Tunguska-M2 or the K-30 Biho have actually been tested, rather than merely marketed, for high-altitude performance is a question that rarely makes it into the public version of this debate.
Reaction time matters just as much. Against a saturating drone swarm, the gap between “radar detects” and “gun or missile fires” has to be measured in single-digit seconds, and that depends on a fire-control loop that can handle several simultaneous low-RCS tracks in cluttered, mountainous terrain — not the cleaner radar environment most of these systems were originally designed around.
Then there’s Identification Friend or Foe. Operation Sindoor was fought with Army, Air Force and Navy systems all sharing the same airspace through Akashteer and IACCS. Any new gun-missile system bolted onto a mechanised column has to slot into that same IFF architecture cleanly enough that a jumpy operator doesn’t bring down a friendly Apache or Rudra flying close air support twenty kilometres away. That’s an integration question, not a hardware one, and it gets far less attention than range and altitude.
The more relevant case study is closer to home. Operation Sindoor, in May 2025, was the first time India’s actual layered air defence — Akashteer, the IAF’s Integrated Air Command and Control System, S-400, MRSAM and Spyder — was tested against a real, large-scale drone and missile assault rather than a desktop exercise. The network held.
That’s the success story. The less-discussed part is that Pakistan’s drones were partly designed to do exactly what hurt the Pantsir in Syria: deplete missile stocks and map radar positions ahead of a follow-up strike with cruise missiles or longer-range air-to-air weapons. A gun-based, lower-cost-per-engagement layer — which is the entire argument for ADGM (SP) — is precisely what keeps that kind of saturation attack from draining an expensive missile inventory.
The Russian Catch Nobody Mentions in the Pitch
Both systems most often floated as interim options — Pantsir and the Tunguska-M2 — are Russian. That isn’t disqualifying on its own; India has lived with this trade-off for decades. But treating it as a non-issue, the way most coverage does, ignores two things that have gotten harder to wave away since 2022.
The first is CAATSA. The US has never granted India a formal, written waiver for the S-400 purchase — successive administrations have simply chosen, year after year, not to trigger sanctions, citing the broader strategic relationship. That informal forbearance has held so far, but it isn’t law, and it isn’t guaranteed to survive a different administration, a different mood in Washington, or a fresh deal stacking more Russian hardware on top of the S-400. Adding a Pantsir or Tunguska-M2 purchase on top of an unresolved sanctions question is a real, if quiet, geopolitical bet — one that deserves more than a footnote next to the Atmanirbhar Bharat language.
The second is more immediate: Rosoboronexport’s actual ability to deliver. Russia’s own war in Ukraine has strained the production lines and component supply chains that feed export orders, and spares flows to existing Indian inventories of Russian-origin equipment have visibly slowed since 2022.
A “stopgap” system bought to bridge a capability gap doesn’t help much if the spares pipeline keeping it running is itself unreliable — which is likely why the BDL-Rosoboronexport MoU leans so heavily on local production and customisation through BDL rather than a straight import.
What “Efforts Are Ongoing” Actually Means on the Ground
This is where vague language does the most damage, because the indigenous side of the story is actually more concrete than most coverage suggests.
DRDO has, since early 2025, been pushing a proposal to build the ADGM-SP itself, on the chassis of the Zorawar light tank co-developed with L&T specifically for high-altitude operations in Ladakh and the Rann of Kutch. The pitch combines twin 30mm guns with the laser-guided VSHORADS missile and an AESA-based radar derived from the Akash programme — reusing proven subsystems rather than starting from scratch, which is the only reason a prototype by mid-2026 is even on the table. Full production clearance is a different story; officials have been candid that induction could slip past 2029 once high-altitude and desert trials run their course.
VSHORADS itself completed its developmental trials in late 2024 and went through repeat final-configuration flight tests through 2025 and into early 2026, validating performance against fast, low-altitude targets. It’s man-portable, uses a dual-waveband infrared seeker, and is being built with Adani Defence & Aerospace and ICOMM Tele as production partners — a genuinely mature programme, not an aspiration.
QRSAM, recently rebranded Anant Shastra, took longer than almost anyone expected — DRDO first promised it in 2018 — but the Defence Acquisition Council cleared the Army’s purchase in mid-2025, and Bharat Electronics received a formal tender that September. It’s a 30km, search-and-track-on-the-move system meant to sit a layer above ADGM (SP), not replace it.
BEL’s footprint runs through nearly every one of these programmes — active-array radars, fire-control software, and a growing share of the electro-optics, including a homegrown stabilised sight that DRDO’s IRDE developed at a fraction of the cost of imported equivalents. The honest bottleneck, by most accounts, isn’t any single subsystem; it’s integration — getting guns, missiles, radar and a fire-control computer to behave as one coherent weapon system across desert heat and Himalayan cold, on a timeline the Army can actually plan around.
A Fairer Comparison Than Three Systems Allows
Limiting the field to Pantsir, K-30 Biho and Tunguska-M2 leaves out at least three systems that deserve a place in the same conversation, for different reasons.
| System (Origin) | Range | Altitude | Chassis / Mobility | Counter-Drone Sensor | Combat Record / Supply Risk |
| Pantsir-S1M (Russia) | 1.2–30 km missile, 4 km gun | Up to 18 km | KAMAZ 8×8 wheeled, ~20 t | Radar + EO, jam-resistant claims | ~23 units lost to small drones in Syria/Libya; CAATSA and spares exposure |
| Tunguska-M2 (Russia) | ~10 km missile, 4 km gun | Up to 3.5 km | Tracked, ~34 t | Dated radar, limited low-RCS pickup | Combat-proven against aircraft, not against modern drone swarms; same Russia-origin risk |
| K-30 Biho (South Korea) | ~7 km Chiron missile, 3 km gun | Up to 3.5 km | Tracked K200, ~25 t | Twin-mode radar + optical | No major combat record against swarms; no sanctions exposure |
| Skyranger 30 (Germany) | 30mm gun, 4–8 km with missile add-on | ~3 km gun envelope | Modular turret on Boxer/wheeled hulls | AESA radar built for loitering munitions | Purpose-built for counter-drone role; unproven in real combat, high unit cost |
| Spyder (Israel) | Up to 20 km, Python-5/Derby missiles | Up to 9 km | Wheeled, road-mobile | EO + radar quick-reaction suite | Already in IAF service; performed during Operation Sindoor; missile-only, no gun tier |
| Avenger / M-SHORAD (USA) | Stinger ~5 km, 30mm/.50cal close-in | ~3.5 km | HMMWV (Avenger) / Stryker (M-SHORAD) | EO + short-range radar | Combat-tested in Iraq/Afghanistan vs limited drone threat; US export conditions apply |
| ADGM-SP (India, DRDO) | VSHORADS + twin 30mm, 6–8 km | High-altitude optimised | Zorawar tracked chassis, 25 t | AESA radar derived from Akash programme | Built and trialled for Ladakh terrain; full induction unlikely before ~2029 |
Israel’s Spyder is the most conspicuous omission, because it isn’t hypothetical — it’s already wired into India’s air defence network and was part of the layer that performed during Operation Sindoor. Germany’s Rheinmetall Skyranger 30 was built from the ground up for the counter-drone mission actually driving this procurement, with a radar optimised against exactly the loitering-munition threat that embarrassed the Pantsir.
The US Avenger and the newer Stryker-mounted M-SHORAD bring real combat experience from Iraq and Afghanistan, though American export terms carry their own conditions.
A genuinely useful comparison would put all of these on the same table — altitude performance, counter-drone sensor capability, mobility, combat record, and the reliability of the supply chain behind each one. Narrowing the field to three before that comparison happens decides the outcome before the analysis even starts.
Where Does a Gun-Missile Truck Actually Fit in the Kill Chain?
ADGM (SP) doesn’t operate alone, and treating it as a standalone capability misses the more interesting question: where does it sit inside the layered structure Operation Sindoor put on display?
The post-Sindoor briefings described something close to a 200km-deep, layered dome — S-400 (Sudarshan Chakra) on the outer edge, MRSAM and the evolving Akash family in the middle, and point-defence guns like the L-70 and Schilka closing the gap at the bottom, all stitched together by Akashteer on the Army side and IACCS on the Air Force side. ADGM (SP) is meant to sit at the very bottom of that stack — moving with the tanks and infantry combat vehicles it protects, picking off whatever slips past everything above it.
That’s a coherent role on paper. What’s missing from most accounts is the command-and-control detail: how an Army Air Defence Corps gun-missile system, moving with an armoured column at speed, hands off target data to and from Akashteer in real time, and how that data reaches IACCS without a gap a fast-moving drone can exploit. Sindoor showed the architecture can work once the network has time to mature into a real-time picture. Whether a brand-new platform, bought or built in a hurry, can be plugged into that same picture without weeks of integration work is a doctrinal question the procurement conversation tends to skip entirely.
The Money Question Nobody Asked Out Loud
Reporting around ADGM (SP) has moved from RFI to RFP stage, with officials indicating the formal Request for Proposal should follow within months and that domestic industry, under a Buy-and-Make route, could realistically deliver a first trial model in four to five years — with full induction stretching another two years beyond that. That timeline alone is worth sitting with: a capability gap identified after Galwan in 2020 may not be closed in regimental strength much before the early-to-mid 2030s.
Cost is the part that almost never makes it into the public conversation. A regiment’s worth of Pantsir-class systems, bought directly from Russia, runs into hundreds of millions of dollars before spares, training and a multi-decade maintenance tail are even factored in — and that’s before weighing it against the lower, but far less certain, cost trajectory of an indigenous Zorawar-based system still years from series production.
Whether ADGM (SP) has a clear capital allocation inside the current Defence Capital Acquisition Plan, and whether the Fast-Track Procedure already used for emergency counter-drone purchases since Sindoor gets extended to this programme, are the kind of budgetary questions that determine whether any of this happens on the timeline the Army needs, rather than the one a press release implies.
Guns and Missiles Aren’t the Last Word
Every system named so far — Pantsir, Tunguska, K-30 Biho, Spyder, Skyranger, the indigenous ADGM-SP — is built around the same basic idea: a gun or a missile intercepting a target kinetically. That’s still the right baseline. It’s also not where the technology stops.
DRDO has already moved past the demonstration stage on this front. In August 2025, its Integrated Air Defence Weapon System trial combined QRSAM, Advanced VSHORADS and a high-power laser-based Directed Energy Weapon, built by the Centre for High Energy Systems and Sciences, in a single engagement that simultaneously destroyed two fixed-wing UAVs and a multicopter drone. That’s not a paper concept; it’s a system that’s already been fired at real targets, and it points toward the next layer of mobile air defence — one where lasers handle the cheap, expendable drone swarm and conventional gun-missile systems like ADGM (SP) are reserved for harder, faster targets.
The other piece is automatic target recognition. A swarm attack like the one Pakistan launched on the night of May 8, 2025, throws dozens of simultaneous tracks at an operator at once — more than any human crew can sort through and prioritise by hand in the time available. How much of that triage gets handed to AI-assisted fire control, and how much human judgement stays in the loop before a weapon is cleared to fire, is a question current ADGM (SP) discussions haven’t really started having, even though it will shape how the system gets used the day it’s needed.
For now, the Army is working two tracks at once — chasing an RFP for an interim buy while DRDO pushes a Zorawar-based system through trials that won’t conclude before the back end of this decade.
Whether that interim buy ends up being Russian, South Korean, German or Israeli depends on questions that haven’t been settled in public: how much Washington’s patience on CAATSA is worth betting on, how much Moscow’s own war has dented its ability to deliver spares, and how comfortable the Army is fielding a system with Pantsir’s specific combat record against the exact threat — small, swarming, cheap drones — that Operation Sindoor just confirmed is the one most likely to come next.
FAQs
What is ADGM (SP) and why does India need it?
It’s a Self-Propelled Air Defence Gun Missile System the Army has been pursuing since a 2022 RFI, meant to give mechanised columns — tanks and infantry combat vehicles — their own mobile, organic protection against drones, helicopters and low-flying aircraft, instead of relying on ageing Tunguska and Schilka systems.
Why is recommending the Pantsir system controversial?
Open-source trackers put Pantsir losses in Syria and Libya at roughly 23 units, mostly to small Turkish drones exploiting radar blind spots. Recommending it as a stopgap without addressing that record against the exact swarm-drone threat India faces is the central criticism.
Does CAATSA actually stop India from buying Russian air defence systems?
Not formally — the US has never issued a written, country-specific waiver for India’s S-400 purchase, but it has also chosen not to impose sanctions. That informal arrangement isn’t guaranteed to continue indefinitely, especially with additional Russian-origin purchases.
What did Operation Sindoor actually demonstrate about India’s air defence?
In May 2025, India’s layered network — Akashteer, IACCS, S-400, MRSAM and Spyder — intercepted a large-scale Pakistani drone and missile assault, including over 600 drones in a single wave, validating the layered, networked approach the country has built over the past decade.
How does ADGM (SP) fit into India’s broader air defence network?
It sits at the bottom of the layered stack — below S-400, MRSAM and Akash — providing point defence that moves with armoured columns, while feeding into and drawing from the same Akashteer/IACCS data backbone used by longer-range systems.
Is India developing directed-energy weapons for counter-drone defence?
Yes. DRDO’s Integrated Air Defence Weapon System trial in August 2025 combined QRSAM, VSHORADS and a laser-based Directed Energy Weapon, successfully destroying multiple UAV targets in a single engagement.
When will India’s indigenous ADGM-SP actually be ready?
A prototype based on the Zorawar light tank chassis is targeted for around mid-2026, but officials have indicated full production clearance and regimental induction could extend to 2029 or later.
Internal Links
- Operation Sindoor: How India’s Layered Air Defence Held Against a 600-Drone Assault
- Inside DRDO’s Zorawar Light Tank Programme for High-Altitude Warfare
External Links
- Carnegie Endowment for International Peace — Military Lessons from Operation Sindoor: https://carnegieendowment.org/russia-eurasia/research/2025/10/military-lessons-from-operation-sindoor
- ThePrint — Army Air Defence on ADGM (SP) RFP and QRSAM: https://theprint.in/defence/army-air-defence-looks-to-procure-surveillance-systems-for-smallest-drones-smart-ammunition/2505390/
- PIB — DRDO Integrated Air Defence Weapon System (Directed Energy Weapon) Trial: https://www.pib.gov.in/PressReleasePage.aspx?PRID=2160257
- Armada International — We Need to Talk About Pantsir: https://www.armadainternational.com/2020/07/we-need-to-talk-about-pantsir/
- Wikipedia — VSHORAD (India) Programme Status: https://en.wikipedia.org/wiki/VSHORAD_(India)
