Radhakishan Shivkishan Damani is a reclusive Indian billionaire investor and the founder-chairman of DMart, widely known as Indiaโs โretail kingโ for building one of the countryโs most efficient, value-driven supermarket chains from a single Powai store in 2002 to hundreds of outlets nationwide. Early life Born into a Maheshwari Marwari family and raised in a…