Reports suggest he had a kidney condition and was on dialysis.
He had also suffered a stroke recently.
Chandraswami was known to be close to politicians like former prime minister PV Narasimha Rao, and was investigated in several high profile scams.
Born Nemi Chand in 1948, he was the son of a money-lender in Rajasthan's Behror.
He also reportedly advised the Sultan of Brunei, actress Elizabeth Taylor, British Prime Minister Margaret Thatcher, arms dealer Adnan Khashoggi and gangster Dawood Ibrahim. In 1996, he was arrested on charges of cheating a London-based businessman of $100,000.
Eight years ago, his name figured in the Rajiv Gandhi killing. The Supreme Court questioned why no action was initiated against the controversial spiritual guru if the government really suspected he funded the assassination of the former Prime Minister by LTTE.
He was ordered by the Supreme Court to pay a penalty in several Foreign Exchange Management Act violation cases registered by the enforcement directorate.
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