Will India become a world economy power?

India's economic rise during the last decades has surprised most of the economists, including the Nobel Laureate Paul Krugman. Which are the ingredients of such an economic roadmap and why hasn’t India's economy boosted along with those of the "Asian tigers" during the 80s or later, with China’s economy? Once India became an important economic player, it can no longer be neglected in international political relations as the struggle for world supremacy became more an economic and technological competition, military rivalry going in the background. How can India maintain growth rates at such a high level? What are the prospects regarding economic and political relations between India and China?