http://www.businessinsider.com/mukesh-ambani-30-trillion-2011-6

India is envisaged to grow from a $1.4 trillion economy to over $9 trillion by 2020 and over $30 trillion by 2030 in nominal terms," Ambani said.

http://www.thehindu.com/business/Economy/india-can-become-10-trillion-economy-by-2030-says-mukesh-ambani/article21242550.ece

“Today, India’s GDP is about $2.5 trillion and ranks at No. 6 in the world. Can we triple it to $7 trillion in the next 10 years and become the third largest economy in the world? Yes, we can. Can we cross the $10 trillion mark by 2030 and close the gap between India and China, and India and the U.S.? Yes, we can,” he said at a leadership summit in Delhi.