CivilsWisdom.
Updated · Today
Science & Technology May 11, 2026 5 min read Daily brief · #7 of 34

1998 Pokhran nuclear tests reflected India's scientific excellence: PM on National Technology Day

May 11 is observed annually as National Technology Day, marking the anniversary of India's five nuclear weapon tests conducted at Pokhran, Rajasthan, in May ...


What Happened

  • May 11 is observed annually as National Technology Day, marking the anniversary of India's five nuclear weapon tests conducted at Pokhran, Rajasthan, in May 1998.
  • India conducted three simultaneous underground nuclear tests on May 11, 1998 at 3:45 PM IST, followed by two additional sub-kiloton tests on May 13, 1998.
  • The tests, collectively known as Operation Shakti, established India as a nuclear-capable state and were described by official statements as reflecting India's scientific excellence and national resolve.
  • May 11, 1998 also saw two other technological milestones: the successful test flight of the indigenous Hansa-3 aircraft in Bengaluru, and the successful test-firing of the Trishul surface-to-air missile developed by the Defence Research and Development Organisation (DRDO).
  • National Technology Day is observed to recognise science and technology achievements and inspire the scientific community.

Static Topic Bridges

Operation Shakti — Pokhran-II Nuclear Tests (1998)

Operation Shakti (also referred to as Pokhran-II) was India's second series of nuclear tests, the first being the Smiling Buddha test of May 18, 1974 (Pokhran-I). The 1998 tests demonstrated a significantly advanced capability, including a thermonuclear device — making India the sixth nation globally to achieve confirmed thermonuclear capability at the time.

  • May 11, 1998: Three simultaneous underground tests — Shakti-I (two-stage thermonuclear device with fusion-boosted primary), Shakti-II (lightweight plutonium implosion fission device, yield: 12 kt), and Shakti-III (experimental linear implosion fission device).
  • May 13, 1998: Two sub-kiloton tests — Shakti-IV and Shakti-V.
  • Total devices detonated: five.
  • The tests were conducted at the Pokhran Test Range, Rajasthan, in the Thar Desert.
  • Scientific leadership for the tests is associated with Dr. A.P.J. Abdul Kalam (then Chief Scientific Adviser to the Government of India and Secretary, DRDO) and Dr. R. Chidambaram (then Chairman, Atomic Energy Commission).
  • India declared itself a nuclear-weapon state following the tests.
  • The tests triggered international sanctions from the United States, Japan, and other countries, which were subsequently rolled back through diplomatic engagement.

Connection to this news: The annual observance of National Technology Day on May 11 is rooted in Operation Shakti, making it a recurring point of examination for UPSC — both for the factual details of the tests and for the strategic and diplomatic consequences.

India's Nuclear Doctrine and No First Use (NFU) Policy

Following the Pokhran-II tests, India formalised its nuclear doctrine. A draft doctrine was released in August 1999, and the doctrine was formally adopted by the Cabinet Committee on Security (CCS) in January 2003. The doctrine rests on the principle of credible minimum deterrence combined with No First Use (NFU).

  • No First Use (NFU): India commits not to be the first to use nuclear weapons in any conflict.
  • Exception to NFU: India reserves the right to respond with nuclear weapons if attacked with biological or chemical weapons.
  • Massive retaliation: Any nuclear attack on India or on Indian forces anywhere will be met with nuclear retaliation designed to inflict unacceptable damage.
  • Civilian control: Nuclear weapons are under civilian political authority (the Nuclear Command Authority, or NCA, comprising a Political Council chaired by the Prime Minister and an Executive Council chaired by the National Security Adviser).
  • India is not a signatory to the Nuclear Non-Proliferation Treaty (NPT) — it views the NPT as discriminatory.
  • India has also not signed the Comprehensive Nuclear-Test-Ban Treaty (CTBT).
  • India acceded to the Partial Nuclear Test Ban Treaty (PTBT) in October 1963.
  • India and China are currently the only two nuclear-armed states to formally maintain a NFU policy (China adopted NFU in 1964, India in 1998).
  • As of 2026, India is estimated to possess approximately 190 nuclear warheads.

Connection to this news: Statements made on National Technology Day about Pokhran tests are often accompanied by implicit and explicit discussion of India's nuclear posture — a topic UPSC tests through questions on India's security doctrine, NFU credibility debates, and India's position on international disarmament regimes.

India's Civil Nuclear Cooperation and Technology Governance

Pokhran-II and its diplomatic aftermath shaped India's re-entry into mainstream global nuclear commerce. The pivotal moment was the India-US Civil Nuclear Agreement (also called the 123 Agreement, after Section 123 of the US Atomic Energy Act), signed in 2008, which enabled civilian nuclear cooperation between India and Nuclear Suppliers Group (NSG) member states despite India not being an NPT signatory.

  • India-US Civil Nuclear Agreement signed: October 2008.
  • Nuclear Suppliers Group (NSG): A 48-nation cartel that controls nuclear trade; India received a special waiver in 2008 to enable civilian nuclear imports.
  • India seeks full NSG membership — currently blocked primarily by China due to India's non-NPT status.
  • Department of Atomic Energy (DAE), established 1954 under the Atomic Energy Act, 1948 (superseded by Atomic Energy Act, 1962), is the apex body for India's nuclear programme.
  • DRDO (Defence Research and Development Organisation), established 1958, has responsibility for India's strategic weapons development including nuclear delivery systems.
  • Trishul missile tested on May 11, 1998 was part of India's Integrated Guided Missile Development Programme (IGMDP), launched in 1983 under Dr. A.P.J. Abdul Kalam.

Connection to this news: National Technology Day is also used to spotlight ongoing advances in India's strategic technology ecosystem — connecting the historical milestone of 1998 to present-day developments in space, defence, and nuclear energy.

Key Facts & Data

  • National Technology Day: May 11 (declared after Pokhran-II, 1998).
  • Operation Shakti: Five tests — three on May 11, two on May 13, 1998.
  • Test site: Pokhran Test Range, Thar Desert, Rajasthan.
  • Shakti-I: Two-stage thermonuclear device (India's first confirmed thermonuclear test).
  • Shakti-II: Plutonium implosion device; yield approximately 12 kilotons.
  • India's nuclear doctrine formally adopted: January 2003 by the Cabinet Committee on Security.
  • NFU adopted: 1998 (draft), 2003 (formal).
  • India's estimated nuclear arsenal (2026): approximately 190 warheads.
  • India is not a signatory to the NPT or CTBT; is party to the PTBT (1963).
  • India-US Civil Nuclear Agreement: signed October 2008.
  • NSG waiver granted to India: September 2008.
  • Pokhran-I (Smiling Buddha): May 18, 1974 — India's first nuclear test.
  • Trishul (surface-to-air missile) and Hansa-3 (indigenous aircraft) were also tested on May 11, 1998.
  • IGMDP launched: 1983; missiles developed: Agni, Prithvi, Akash, Trishul, Nag.
On this page
  1. What Happened
  2. Static Topic Bridges
  3. Operation Shakti — Pokhran-II Nuclear Tests (1998)
  4. India's Nuclear Doctrine and No First Use (NFU) Policy
  5. India's Civil Nuclear Cooperation and Technology Governance
  6. Key Facts & Data
Display