Mukesh Ambani (63 yrs)
Founder and Chairman, Reliance Industries

Net Worth - $88.7B: The industry ranges over petrochemicals, oil and gas, telecom and retail.During the Covid-19 lockdown, he raised more than $20 billion selling a part ofJio to investors like Facebook and Google.Reliance was founded in 1966 as a small textile manufacturer by his late father DhirubhaiAmbani.

Net worth - $25.2B: GautamShantilalAdani is the chairman and founder of the Adani Group. Adani Group's interests include power generation and transmission, edible oil, real estate and defence. In September 2020, Adani acquired a 74% stake in Mumbai International Airport.

Net worth - $21.9B: Shiv Nadar cofounded HCL in 1976 in a garage to make calculators and microprocessors. He was the chairman of HCL Technologies, a $9.9 billion (revenue) company. In July 2020, he stepped down and handed over the position to his daughter, RoshniNadar Malhotra.

Net worth - $18.1B: RadhakishanDamanistarted retailing in 2002 with one store in outer Mumbai. Today he has 214 DMart stores across India.Damani became India's retail king after the March 2017 IPO of his supermarket chain Avenue Supermart.

Net worth - $14B: The Hinduja Groupis controlled by four siblings, Srichand (84 yrs), Gopichand (79 yrs), Prakash (74 yrs) and Ashok (69 yrs). Their businesses is spread over trucks and lubricants to banking and cable television.The brothers own valuable real estate in London, including the historic Old War Office building in Whitehall, which will house a Raffles Hotel.

Net worth - $11.4B: Cyrus Poonawallastarted Serum Institute of India in 1966 and made it into the world's largest vaccine maker (by doses).Serum produces over 1.5 billion doses annually of a range of vaccines, including for measles, polio and flu. It has multiple Covid-19 vaccine partnerships and is doing trials of the vaccine in India developed by AstraZeneca and Oxford University.

Net worth - $13.4B: Pallonji Mistry controlsthe 155-year-old ShapoorjiPallonji Group that is Mumbai-headquartered engineering and construction giant. Mistry's older son Shapoor runs the S.P. Group, also owns Eureka Forbes, India’s leading brand of water purifiers.The family's biggest asset is an 18.4% stake in Tata Sons.

Net worth - $16.1B: UdayKotak started a finance firm in 1985 and converted it into a bankin 2003.His Kotak Mahindra Bank is one among India's top four banks in the private sector. Kotak sold some shares in June 2020, to reduce his stake in the bank as agreed with the RBI.

Net worth - $11B: The Godrej group was established by lawyer Ardeshir Godrej in 1897. Now the group is chaired by Adi Godrej. Main group companies are Godrej Consumer Products, chaired by Adi Godrej's daughter Nisaba and Godrej Properties by his son Pirojsha.

Net worth - $14.6B: ArcelorMittal is the world's largest steel and mining company by output.His son, Aditya Mittal is ArcelorMittal's president and chief financial officer. His daughter, Vanisha Mittal Bhatia, has a board seat.