New Delhi: Holding a strategic advantage over Pakistan in nuclear capabilities, India has made significant progress in developing advanced nuclear delivery systems, according to the Stockholm International Peace Research Institute (SIPRI).
India has increased its nuclear arsenal from 172 warheads in 2024 to an estimated 180 in 2025, alongside notable advancements in its nuclear delivery systems. India’s new ‘canisterised’ missiles, which allow warheads to be pre-mounted and transported more safely, could potentially carry nuclear warheads even during peacetime, according to the SIPRI report.
“India is believed to have once again slightly expanded its nuclear arsenal in 2024 and continued to develop new types of nuclear delivery systems. India’s new ‘canisterised’ missiles, which can be transported with mated warheads, may be capable of carrying nuclear warheads during peacetime, and possibly even multiple warheads on each missile, once they become operational,” the SIPRI report said.
India’s newest next-generation delivery platforms include the Agni Prime (Agni-P) missile and the Multiple Independently Targetable Re-entry Vehicle (MIRV)-capable Agni-5 system. According to India’s Ministry of Defence, Agni-P is a new-generation, advanced variant of the Agni series of missiles. It is a canisterised missile with a range of between 1,000 and 2,000 kilometres. The latest test of the Agni-P was conducted last year.
Last year, India also successfully tested the MIRV-capable Agni-5. This missile is capable of striking targets at ranges exceeding 5,000 kilometres. Following the test, lauding the efforts of the Defence Research and Development Organisation (DRDO) scientists involved in the mission, Prime Minister Narendra Modi in a post on X, wrote: “Proud of our DRDO scientists for Mission Divyastra, the first flight test of the indigenously developed Agni-5 missile with Multiple Independently Targetable Re-entry Vehicle (MIRV) technology.”
As per SIPRI’s observation, Pakistan has also continued the development of new nuclear delivery platforms and accumulated more fissile material in 2024, suggesting an intent to further expand its nuclear arsenal in the coming decade. SIPRI, referring to a brief India-Pakistan military clash in early 2025, raised serious concerns about the risks of escalation during conventional conflicts between nuclear-armed neighbours.
“The combination of strikes on nuclear-related military infrastructure and third-party disinformation risked turning a conventional conflict into a nuclear crisis. This should act as a stark warning for states seeking to increase their reliance on nuclear weapons,” warned Matt Korda, Associate Senior Researcher with SIPRI’s Weapons of Mass Destruction Programme and Associate Director for the Nuclear Information Project at FAS.
According to SIPRI, all nine nuclear-armed states, namely the United States, Russia, the United Kingdom, France, China, India, Pakistan, North Korea, and Israel, continued to invest heavily in modernising their nuclear forces in 2024. This includes not only upgrading existing systems but also introducing newer technologies and weapons.
SIPRI, as of January 2025, estimated the total global nuclear warhead inventory at 12,241, of which about 9,614 were in military stockpiles for potential use. Around 3,912 warheads were deployed with operational missiles and aircraft, and the rest remained in central storage. Of the deployed warheads, approximately 2,100 were kept on high operational alert on ballistic missiles, most of them belonging to Russia or the United States. However, China may now also be maintaining some warheads on missiles during peacetime, noted SIPRI.
