Mukesh Ambani is India's richest person with $90.7 billion wealth as of March 11, Forbes' latest rich list released on Tuesday stated. Gautam Adani is second-richest in India with $90 billion wealth, followed by HCL Tech's Shiv Nadar ($28.7 billion) and Cyrus Poonawalla ($24.3 billion). DMart's Radhakishan Damani is fifth-richest in India with $20 billion wealth and Lakshmi Mittal sixth-richest.