An attempt has been made in this article to assess the arguments in favour of a fundamental shift in Indo-US relations by revisiting the history of their bilateral relations since its formative period and comparing it with the present period. The paper strongly argues that the Indian decision to go nuclear in May 1998 played a catalytic role in bringing the two democracies together. It was Shakti 1998, which changed the entire scenario and augmented for a changed US policy towards South Asia, especially towards India. Also, the May 1998 nuclear tests helped India stand firmly vis-à-vis its security concerns and threats as well as in its projection of a power to be reckoned with.