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India's Nuclear Program

📅 Last updated: July 07, 2025 2 min read

📰 Why in News?

  • The Stockholm International Peace Research Institute (SIPRI) released its 2025 report on global nuclear forces.
  • India’s nuclear arsenal has increased to 180 warheads, reflecting modernization and expansion.
  • China’s stockpile rose sharply to 600 warheads, raising security concerns for India.
  • Meanwhile, Pakistan maintains a comparable arsenal of 170 warheads, keeping South Asia a nuclear flashpoint.
  • The region is turning into a high-stakes nuclear theatre, demanding sharper strategic focus from India.

Introduction

India’s nuclear program represents a paradox: a nation shaped by Mahatma Gandhi's ideals of non-violence, yet maintaining one of the world’s most powerful arsenals. But India’s nuclear journey has never been about aggression. Rather, it reflects a need to secure sovereignty, deter threats from hostile neighbors, and assert strategic autonomy in a world shaped by power politics. This article provides a comprehensive overview of India's nuclear journey, explaining its doctrine, capabilities, international stance, and the challenges it faces.


Historical Background

  • India's nuclear aspirations began shortly after independence. Dr. Homi J. Bhabha, often called the father of India's nuclear program, established the foundations of atomic research with a peaceful outlook. The goal was to use nuclear energy for development, not destruction.
  • However, regional tensions and international nuclear policies changed India's stance. In 1974, India conducted its first nuclear test at Pokhran, Rajasthan. Code-named "Smiling Buddha", the test was described as a "peaceful nuclear explosion," though it clearly demonstrated India's weapons capability.
  • In 1998, India conducted five more nuclear tests under "Operation Shakti", officially declaring itself a nuclear weapons state. These tests were seen as a response to growing threats from China and Pakistan, as well as a rejection of global nuclear double standards.

India's Nuclear Doctrine

  • No First Use (NFU): India has adopted a clear policy that it will never use nuclear weapons as a first strike. This means nuclear weapons are purely for deterrence, not for initiating war.
  • Minimum Credible Deterrence: India does not aim to build a large nuclear arsenal. Instead, it focuses on maintaining a minimum number of weapons necessary to deter any nuclear threat. This approach reduces arms race risks while preserving national security.
  • Massive Retaliation: If India is ever attacked with nuclear weapons, it promises a massive and devastating retaliation. This policy is intended to discourage any adversary from considering a nuclear strike in the first place.

The Nuclear Triad

  • Land-based Missiles: India has developed a series of ballistic missiles under the Agni and Prithvi programs. These missiles can carry nuclear warheads and reach targets ranging from nearby regions (Agni-I) to deep into China (Agni-V), providing a credible land-based strike capability.
  • Air-based Delivery: Indian Air Force aircraft such as the Mirage-2000, Jaguar, and Rafale have been modified to carry nuclear bombs. These aircraft provide flexibility and a quick response option in case of emergencies.
  • Sea-based Deterrence: The INS Arihant, India’s first indigenously built nuclear-powered submarine, can launch nuclear missiles from underwater. This ensures that even if India is attacked and its land and air assets are destroyed, it can still retaliate from the sea. This capability is critical for second-strike assurance.

Why India Didn’t Sign the NPT

  • The Nuclear Non-Proliferation Treaty (NPT), created in 1968, classifies countries into two groups: nuclear weapon states (who tested before 1967) and non-nuclear states. The treaty allows the former to keep their arsenals but prohibits the latter from developing any.
  • India considers this structure unfair and discriminatory. It believes that the treaty legitimizes the nuclear monopoly of a few countries while permanently denying the same right to others, regardless of their security needs.
  • Moreover, the NPT promised disarmament from nuclear weapon states, but that promise has largely been unfulfilled. India, therefore, chose not to sign the NPT, emphasizing its commitment to nuclear responsibility without accepting second-class status.

Civilian vs Military Nuclear Programs

  • India maintains a strict separation between its civilian and military nuclear programs. Civilian nuclear reactors are meant for electricity generation and operate under the supervision of the International Atomic Energy Agency (IAEA).
  • On the other hand, India’s military nuclear facilities, including weapons design, enrichment, and delivery systems, are kept confidential and are not under international oversight. This dual-use approach allows India to pursue clean energy while ensuring national security.

India’s Global Nuclear Position

  • India has not signed the Comprehensive Test Ban Treaty (CTBT), which prohibits all nuclear explosions. However, after the 1998 tests, India declared a voluntary moratorium on testing and has not conducted any further nuclear tests since then.
  • India is not a member of the Nuclear Suppliers Group (NSG), which controls global nuclear commerce. But in 2008, it received a waiver allowing it to trade in nuclear materials for civilian use. India continues to seek full NSG membership but faces opposition, especially from China.
  • Despite not being part of these treaties, India has earned global recognition as a responsible nuclear power due to its track record of non-proliferation and commitment to global peace.

Infrastructure and Arsenal

  • As of 2024, India is estimated to have around 170 nuclear warheads. This number reflects its policy of minimum credible deterrence.
  • India's key nuclear institutions include the Bhabha Atomic Research Centre (BARC) for research and development, the Nuclear Power Corporation of India Limited (NPCIL) for civilian energy, and the Defence Research and Development Organisation (DRDO) for weapons and delivery systems.
  • India continues to modernize its arsenal with improved delivery systems like MIRV technology and enhanced submarine capabilities, while keeping its posture defensive and restrained.

Strategic Challenges

  • India's primary nuclear challenges come from two neighboring nuclear powers: Pakistan and China. Both countries have been expanding and modernizing their arsenals.
  • Pakistan is developing tactical nuclear weapons, which are meant for battlefield use. This lowers the threshold for nuclear conflict and complicates India's response policy.
  • China possesses more warheads, longer-range missiles, and advanced technologies like hypersonic weapons. India’s Agni-V and future projects like Agni-VI are aimed at countering this threat.

Ethical Dimensions

  • India’s nuclear posture reflects a balance between security needs and moral responsibility. While it holds the power to cause massive destruction, India emphasizes that its nuclear weapons are only for deterrence.
  • India has never used or threatened to use nuclear weapons offensively and has never been involved in proliferation of nuclear technology to other states.
  • India’s commitment to "No First Use" and restraint makes it a unique nuclear power that seeks peace through strength rather than domination.

The Road Ahead

  • India is developing next-generation technologies like the Agni-VI missile with MIRV (Multiple Independently Targetable Reentry Vehicles), which can carry multiple warheads on a single missile.
  • The expansion of its nuclear submarine fleet will further enhance second-strike capability, making India’s deterrent more credible and survivable.
  • Simultaneously, India is increasing investments in civilian nuclear power to meet its energy needs sustainably, aiming to reduce reliance on coal and lower carbon emissions.

Conclusion

India's nuclear program is guided by necessity, not ambition. It is a response to an unequal global nuclear order and a region filled with threats. Yet, India has proven that a nuclear power can be both responsible and restrained. Its policies reflect a commitment to peace, sovereignty, and strategic independence. In an unstable world, India's balanced nuclear posture serves not just as protection, but also as a statement: that strength and ethics can coexist.