Nykaa Founder Falguni Nayar's net worth rose to $6.5 billion on Wednesday as shares of the beauty unicorn surged as much as 89% on its market debut. The 58-year-old has become India's richest self-made female billionaire, according to the Bloomberg Billionaires Index. Nayar, who was an investment banker earlier, founded Nykaa in 2012, months before she turned 50 years old.