In terms of count: Software tops the list with 6 billionaires (5 from Infosys) followed by Real Estate (4), Pharma (3), Media (2) & Commodities (2)
In terms of NetWorth: Software ($13.3B), Real Estate ($10.5B), Pharma ($9.7B), Telco ($8.3B), Media ($6.4B), Mining ($6.4B)
The youngest entrepreneur on this list is 45 and the oldest is 87
Even though people like Azim Premji, Ajay Piramal, Cyrus Poonawalla, etc. have built great companies in new industries they did not inherit, they are still not counted on this list as self-made since they started out inheriting companies in some shape or form (this is how Forbes has classified them)
I browsed through the stories behind these amazing Indians and many of them are highly inspiring. I have provided links to their Wikipedia pages (if available) in case you want to browse as well.
As I was browsing the above list, I couldn't help but notice that it is missing a whole slew of highly successful Indian entrepreneurs around the globe. Here are a few names at the top of my head that I know off and admire: