Rajan added that Cyrus Mistry's death in a car accident is a huge loss for the corporate world.
"He cared deeply about sustaining the values the (Tata) Group stood for, and set a great example of hard work and responsibility for every member of his team," Rajan said.
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Rajan said Mistry was very young but slipped into the giant shoes of his predecessor Ratan Tata with “felicity and grace".
He described Mistry as “an inspiring leader, and a kind and considerate human being" who had worked under Ratan Tata. "His untimely demise is a huge loss for the corporate world," Rajan said.
Earlier in the day, Mistry was travelling from Ahmedabad to Mumbai in a Mercedes car and met with an accident at the Gujarat-Maharashtra border.
Apart from industrialists, Prime Minister Narendra Modi, Vice President Jagdeep Dhankhar, Maharashtra CM Eknath Shinde, Congress leader Rahul Gandhi and others expressed their condolences.
With PTI inputs.