Current arsenal and estimates of inventory

• In 2005, it was estimated that India had between 40 and 50 warheads.^[9]

• In November 2008, the Bulletin of the Atomic Scientists estimated that India has about 70 assembled nuclear warheads, with about 50 of them fully operational.^[10]

• A report by David Albright, published by the Institute for Science and International Security in 2000, estimated that India at end of 1999 had 310 kilograms of weapon gradeplutonium, enough for 65 nuclear weapons. He also estimated that India had 4,200 kg of reactor grade plutonium which is enough to build 1,000 nuclear weapons.^[11][12] By the end of 2004, he estimates India had 445 kilograms of weapon grade plutonium which is enough for around 85 nuclear weapons considering 5 kg of plutonium required for each weapon.^[13]

• As of February 2011, the Federation of American Scientists estimated that India had a stockpile of 80-100 weapons.^[4]

• Former R&AW official J.K. Sinha, claimed that India is capable of producing 130 kilograms of weapon grade plutonium per year from six "unsafeguarded" reactors not included in the nuclear deal between India and the United States.