10.Cyrus S. Poonawalla

Age: 81 Net Worth: 13.3 billion Company: Serum Institute of India Source of wealth: Vaccination

9.Savitri Jindal

Age: 71 Net Worth: 14.2 billion Company:  JSW Group,  Jindal Steel & Power Source of wealth: Steel, energy, cement and infrastructure

8.Uday Kotak

Age: 62 Net Worth: 14.4 billion Company: Kotak Mahindra Bank Source of wealth: Banking

Net Worth: 14.4 billion Company: Hinduja Group Source of wealth: Trucks, lubricants, banking, cable television, etc

7.Hinduja Group

6.Pallonji Mistry

Age: 92–93 Net Worth: 15 billion Company:  Shapoorji Pallonji Group Source of wealth: Construction, real estate

5.Radhakishan Damani

Age: 67 Net Worth: 15.4 billion Company:  Avenue Supermarts, DMart Source of wealth: Investments, retail

4.Lakshmi Mittal

Age: 71 Net Worth: 18.7 billion Company: Arcelor Mittal Source of wealth: Steel

3.Shiv Nadar

Age: 76 Net worth: 22.5 billion Company: HCL Technologies Source of wealth: IT services and consulting

2.Gautam Adani

Age: 59 Net worth: 75.3 billion Company: Adani Group Source of wealth: Commodities, ports, power generation and transmission, real estate, defense, airport and data centre

1.Mukesh Ambani

Age: 64 Net worth: 88.9 billion Company: Reliance Industries Source of wealth: Petrochemicals, telecom, retail