India Widens Nuclear Lead Over Pakistan with Arsenal Reaching 190 Warheads: SIPRI Report

India has further expanded its nuclear arsenal, widening its strategic lead over Pakistan, according to the latest estimates from the Stockholm International Peace Research Institute (SIPRI). The independent think tank’s annual assessment indicates that India now possesses an estimated 190 nuclear warheads, marking a notable increase and reinforcing its position among the world’s nuclear powers.

SIPRI’s Yearbook, widely regarded as one of the most authoritative sources on global arms and disarmament trends, highlights that India’s nuclear stockpile has grown steadily in recent years. This expansion comes amid ongoing modernization efforts, including advancements in delivery systems such as ballistic missiles, submarine-launched platforms, and potentially MIRV (Multiple Independently Targetable Reentry Vehicle) capabilities.

In contrast, Pakistan’s nuclear arsenal is estimated to remain around 170 warheads. While Pakistan continues to develop new delivery systems and accumulate fissile material — signaling potential future growth — its current stockpile has shown relative stability compared to India’s upward trajectory. This shift has seen India surpass Pakistan in nuclear warhead numbers for the second consecutive year, with the gap continuing to widen.

The development is taking place against a backdrop of persistent tensions between the two South Asian neighbors. Analysts point out that both countries view their nuclear capabilities primarily through the lens of regional deterrence, with India also increasingly focusing on longer-range systems capable of addressing threats beyond Pakistan, including China.

SIPRI notes that India is actively enhancing its nuclear triad — the ability to deliver nuclear weapons from land, air, and sea platforms. Key programs include the Agni series of missiles, the INS Arihant-class nuclear submarines, and Rafale fighter jets potentially configured for nuclear roles. These advancements reflect New Delhi’s broader push to build a credible minimum deterrence posture while responding to evolving security challenges in the Indo-Pacific region.

Pakistan, for its part, has prioritized tactical nuclear weapons and shorter-range systems designed to counter perceived conventional disadvantages. The SIPRI report underscores that both nations are investing heavily in command-and-control infrastructure and survivability measures to ensure second-strike capabilities.

Globally, nuclear arsenals remain a cause for concern. SIPRI estimates that the nine nuclear-armed states together hold approximately 12,000 warheads, with the United States and Russia accounting for the vast majority. However, countries like China, India, and North Korea are among those actively expanding and modernizing their forces. China’s arsenal, in particular, has grown rapidly and now stands significantly ahead of India’s.

The report warns of heightened escalation risks due to deteriorating geopolitical relations, the erosion of arms control agreements, and the integration of new technologies such as cyber and space capabilities into nuclear postures. In the India-Pakistan context, the absence of comprehensive escalation management frameworks covering non-traditional domains adds to potential crisis instability.

SIPRI’s findings are based on open-source data, satellite imagery, and expert analysis, as nuclear-armed states provide limited official transparency regarding their stockpiles. The institute has consistently called for greater dialogue, confidence-building measures, and renewed efforts toward nuclear disarmament to mitigate risks in one of the world’s most volatile regions.

This latest assessment is expected to fuel debates on strategic stability in South Asia as both nations continue to balance security imperatives with international non-proliferation norms.