The pharmacist gets his wealth from the family's 48 percent stake in the listed Glenmark Pharmaceuticals that is expanding its global footprint. In May, the company opened a new factory in Switzerland, where it already has a research centre, to make drugs for cancer and multiple sclerosis. It is also building a new factory in the US, a market that contributes more than a third to Glenmark's $1 billion annual revenues. Sister Cheryl, also a pharmacist, oversees corporate affairs.
Fast Fact: He's an avid badminton player.