Mumbai, Dec. 16 -- Even while the domestic economy is showing very little signs of recovery and growth, India's richest man Mukesh Ambani on Tuesday reaffirmed his belief that India will grow to be among the top three economies of the world in the next two decades.

The Reliance Industries chairman also said the country's per capita income will double in the same period.

"I firmly believe that in the next two decades, India will grow to be among the top three economies in the world," Ambani said in a virtual interaction with Facebook CEO Mark Zuckerberg in the 'Facebook Fuel for India 2020' event.

"(Besides) It will be a modern society with young people driving it, with young businesses driving it. And our per capita income will go from...