India's first Prime, Minister Jawaharlal Nehru, laid the foundations of an elaborate atomic energy program in 1948, just a year after India's independence. Yet, it took Indian decision-makers more than 50 years to declare the country a nuclear-weapon state in May 1998. Once India crossed the nuclear rubicon, it has managed to transform itself into a major nuclear power. This short introduction provides a clear and succinct account of the evolution...