Gopikishan Damani is the younger brother of billionaire Radhakishan Damani, now considered India's retailing king. They control listed retailing giant Avenue Supermart, which owns D-Mart, a supermarket chain with 271 stores. D-Mart offers a range of value-for-money products from food to apparel. Damani, together with his billionaire brother Radhakishan, reportedly bought a house in south Mumbai in 2021 for more than $100 million.