What India’s 12 ‘operationally deployed’ nuclear warheads really mean
The Stockholm International Peace Research Institute (SIPRI) released its annual yearbook in June. For the first time, it classified 12 of India’s estimated stockpile of
The Stockholm International Peace Research Institute (SIPRI) released its annual yearbook in June. For the first time, it classified 12 of India’s estimated stockpile of 190 nuclear warheads to be operationally deployed, i.e., positioned with active military forces mated with delivery systems and ready for use. This sounds alarming — but the alarm itself may not be warranted. The reason is that India has neither crossed a strategic threshold nor has it abandoned its decades-old ‘no first use’ policy. India’s promise India’s ‘no first use’ (NFU) policy is a pillar of its nuclear doctrine and its credible minimum deterrence posture. At the UN High-Level Meeting commemorating the International Day for the Total Elimination of Nuclear Weapons in September 2025, India’s representative Sibi George reaffirmed India’s commitment to NFU and to the non-use of nuclear weapons against non-nuclear-weapon states. The political foundations of the doctrine are intact even as some analysts within India have periodically called for a conditional or hybrid first-use posture. Those calls have not prevailed. Under NFU, India commits to not launching a pre-emptive nuclear strike. What it needs is the absolute certainty that even after absorbing a nuclear first strike, enough of its nuclear arsenal will survive to deliver a devastating retaliatory blow. This survivability guarantee is what strategists call a second-strike capability, and without it, NFU is not a doctrine but a liability. In other words, the doctrine depends on a force that can survive and retaliate. The SIPRI report does not indicate a shift towards first use, a lowering of the threshold for nuclear employment or indeed any revision of the political controls that govern India’s nuclear weapons. Instead, it documents the maturing of India’s ability to credibly deliver the second strike. Stockpile v.
Deployment This distinction is significant. Possessing a nuclear warhead and deploying it as part of an operational deterrent is not the same thing. For most of its nuclear history, India has kept its warheads in a de-mated state, meaning the warheads were stored separately from their delivery vehicles, in a central storage site and under strict civilian and political oversight. The idea was to maximise safety, reduce the risk of accidental use, and signal restraint to the international community. Deployment, on the other hand, means a weapon has been paired with a delivery system — a missile, aircraft, or submarine — and positioned with operational military forces in a state of readiness. Again, this does not mean the weapons are about to be used; it means they are configured for use if authorised. A de-mated weapon requires time to prepare and deploy; a mated weapon can, in principle, be launched more quickly. What SIPRI has recorded when it classified 12 Indian warheads as being deployed is that a small — but no doubt significant — fraction of India’s arsenal now is being maintained in a state of operational readiness. And SIPRI has linked this assessment to the maturation of India’s nuclear triad, particularly its sea-based deterrent, suggesting that a small number of warheads may now be deployed aboard a nuclear ballistic missile submarine (which are also called SSBN) conducting occasional deterrence patrols. India’s Arihant-class submarines have steadily strengthened the survivability of the country’s second-strike capability, with additional platforms expected to further consolidate this leg of the triad. SIPRI also noticed India’s increasing reliance on canisterised Agni-series missiles. This means the missiles are kept ready with fuel in a sealed cylinder, from which they can be directly fired without further preparations.
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