Tata Group has retained its title as India's most valuable brand with a $28.6 billion brand value, Brand Finance said. Tata Group's brand value highlights the first time an Indian brand is close to the $30 billion brand value mark, Brand Finance added. Tata Group was followed by Infosys, HDFC Bank, LIC, RIL, SBI, Airtel, HCLTech, L&T and Mahindra.