India's second richest man, Gautam Adani, is ranked 17th, with his wealth surging from $47.2 billion to $84 billion while HCL Tech co-founder Shiv Nadar secured the 39th rank with a net worth of $36.9 billion.
Despite having no business degree, prior experience or backing, Dr Rao went from an ordinary homeopath doctor to a billionaire and one of the richest persons in Hyderabad.
Hailing from Andhra Pradesh, Rao was born and raised in a farming family and faced a lot of financial difficulties. He travelled miles to school despite not having access to basic communication tools. He also lost his father at a young age but did not let that hold him back.
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