Dhirubhai Ambani Career

He founded Reliance Industries in 1966, and as of 2012, the company has over 85,000 employees and provides almost 5% of the Central Government's total tax revenue. As of 2012, Reliance Industries was listed among topFortune 500 list of world's biggest companies by revenues.

Source:
https://en.wikipedia.org/wiki/Dhirubhai_Ambani