Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. India's loss of territory to China in a brief Himilayan border war in October, 1962 provided the New Delhi government impetus for developing nuclear weapons as a means of deterring potential Chinese aggression. India's first nuclear test occurred on 18 May 1974. Since then India has conducted another series of tests at the Pokhran test range in the state of Rajasthan in 1998. 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 2012 after undergoing extensive sea-trials. Learn more about nuclear weapons and India's pursuit to obtain them in the following pages.