Hinduja Brothers (Gopichand, Prakash and Ashok) Estimated wealth: $15 billion Flagship firms: Ashok Leyland, IndusInd Bank, Gulf Oil Lubricants India, Hinduja Global Solutions, GOCL Corp. The net worth of Hinduja brothers comes from a diverse business base comprising financials, transport and energy, technology, media and renewables.

Jay Chaudhry Estimated wealth: $8 billion Flagship firm: Zscaler The CEO and founder of Zscaler, a publicly-traded cloud security company, holds a 42% ownership stake that constitutes the majority of his wealth.

S.P. Lohia Estimated wealth: $7 billion Flagship firm: Indo Rama Synthetics Sri Prakash Lohia is the founder of Indorama Corp., a diversified petrochemical and textiles conglomerate, and is also the world's largest producer of PET resin through its associate company, Indorama Ventures Public.

Vinod Khosla Estimated wealth: $6 billion Flagship firm: Khosla Ventures An investor and technologist, he established Khosla Ventures to support entrepreneurs in creating disruptive, technology-driven companies.

M.A. Yusuff Ali Estimated wealth: $5.7 billion Flagship firm: LuLu Group International, Waldorf Astoria (Scotland), the Great Scotland Yard Hotel The UAE-based billionaire serves as the CMD of LuLu Group International, a global enterprise with 254 stores in 23 countries.

Romesh T. Wadhwani Estimated wealth: $5.1 billion Flagship firm: Symphony Technology Group The serial entrepreneur with a Ph.D. from Carnegie Mellon, best known as the founder and former CEO of Symphony AI and the chairman of ConcertAI, a healthcare AI firm valued at $1.9 billion, and for founding Aspect Development, which sold for $9.3 billion.

Sridhar Vembu Estimated wealth: $5 billion Flagship firm: Zoho Corporation He is the California-based founder and CEO of Texas-headquartered Zoho Corporation, a web-based business tools provider with over 90 million global users.