Who are India's most experienced self-made entrepreneurs of the millenia?

According to Hurun's list of India's richest self-made entrepreneurs in the millennium, 82-year-old Happiest Minds Technologies Chairman Ashok Soota is the most-experienced self-made entrepreneur. Star Health's 80-year-old Founder V Jagannathan, Medanta's 79-year-old MD Naresh Trehan and Aptus' 75-year-old Founder M Anandan ranked next. Aether's Ashwin Desai also made it to the list.