Radhakishan Damani, India’s retail king, is worth more than $17 billion thanks to his successful IPO of Avenue Supermarts, also known as DMart. His real-estate empire includes a luxurious bungalow worth Rs 1000 crore, 28 apartments at Worli’s Dr Annie Besant Road worth Rs 1238 crore, and a beachfront resort in Alibaug.