High Quality Content by WIKIPEDIA articles! India possesses nuclear weapons and maintains short- and intermediate-range ballistic missiles, nuclear-capable aircraft, surface ships, and submarines under development as possible delivery systems and platforms. Although it lacks an operational ballistic missile submarine, India has ambitions of possessing a nuclear triad in the near future when INS Arihant the lead ship of India's Arihant class of nuclear-powered submarines formally joins the Indian Navy in 2011 after undergoing extensive sea-trials. Though India has not made any official statements about the size of its nuclear arsenal, recent estimates suggest that India has between 80 and 100 nuclear weapons, consistent with earlier estimates that it had produced enough weapons-grade plutonium for up to 75–110 nuclear weapons. Production of weapons-grade plutonium is believed to be taking place at the Bhabha Atomic Research Centre, which is home to the CIRUS reactor, acquired from...