Unitech caters to construction, real estate development, consultancy in related areas, hotels, electrical transmission and information technology.

It will soon build 150 million square feet of space across the country, five times more than the total stock of space that major builders will make available in the country's metros this year.

Chandra's low-profile company has quietly built up a real estate empire, buying land in recent months across the country -- from Gurgaon to Kolkata, Kochi, Hyderabad and Chennai -- to create a land bank of over 8,000 acres, 1,000 acres of which is in Gurgaon.

Chandra, 67, believes real estate prices are not a bubble and is a sign of India's rising economic growth.

Going forward, Unitech, the country's biggest real-estate company by market value, plans to raise as much as $700 million selling shares in a unit on the London Stock Exchange.

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