India will outpace China to become the world’s largest economy by 2050, boasting a Gross Domestic Product (GDP) of $86 trillion, forecasts a report by global property firm Knight Frank and Citi Private Bank. Leading the elephant’s charge will be Mumbai and New Delhi, which will feature in the list of top 20 cities globally within the next ten years. “China will overtake the US to become the world’s largest economy by 2020, which in turn will be overtaken by India in 2050. The Indian economy will reach a size of $85.97 trillion in terms of purchasing power parity by 2050 while the Chinese GDP would be $80.02 trillion during the same period,’’ said the report. The US—currently the world’s largest economy—is expected to have a GDP of $39.07 trillion by 2050. In terms of growth from 2010-2050, India would be the second fastest, with its economy growing at a rate of 8% annually during the period after Nigeria which will grow at 8.5%.