Indian nuclear forces, 2020

India continues to modernize its nuclear arsenal, with at least three new weapon systems now under development to complement or replace existing nuclear-capable aircraft, land-based delivery systems, and sea-based systems. Several of these systems are nearing completion and will soon be combat-ready. India is estimated to have produced enough military plutonium for 150 to 200 nuclear warheads but has likely produced only 150. Nonetheless, additional plutonium will be required to produce warheads for missiles now under development, and India is reportedly building several new plutonium production facilities. India’s nuclear strategy, which has traditionally focused on Pakistan, now appears to place increased emphasis on China, and Beijing is now in range of Indian missiles.

India continues to modernize its nuclear weapons arsenal and operationalize its nascent triad. We estimate that India currently operates eight nuclear-capable systems: two aircraft, four land-based ballistic missiles, and two sea-based ballistic missiles. At least three more systems are in development, of which several are nearing completion and will soon be combat-ready. Beijing is now in range of Indian ballistic missiles.

India is estimated to have produced approximately 600 kilograms of weapon-grade plutonium, sufficient for 150–200 nuclear warheads; however, not all the material has been converted into nuclear warheads. Based on available information about its nuclear-capable delivery force structure and strategy, we estimate that India has produced 150 nuclear warheads. It will need more warheads to arm the new missiles that it is currently developing.

In addition to the operational Dhruva plutonium production reactor at the Bhabha Atomic Research Centre complex near Mumbai, India has plans to build at least one more plutonium production reactor. Adding to the estimated 5,400 kilograms of reactor-grade plutonium included in India’s strategic stockpile, the unsafeguarded 500-megawatt Prototype Fast Breeder Reactor under construction at the Indira Gandhi Centre for Atomic Research near Kalpakkam could potentially increase India’s plutonium production capacity significantly in the near future if it achieves criticality as planned in 2020, after a series of delays.

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About the author

Hans M. Kristensen and Matt Korda

Hans M. Kristensen is the director of the Nuclear Information Project with the Federation of American Scientists in Washington, DC. Matt Korda is a research associate for the Nuclear Information Project at the Federation of American Scientists, where he coauthors the Nuclear Notebook with Hans Kristensen.

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