Mumbai: Vedanta Group, which houses India's leading aluminium and zinc production companies, is building a private energy business on a contrarian bet that providing round-the-clock green power and making technological advancements will yield higher margins than backward integration. Comprising Sterlite Electric, Serentica Renewables and Resonia Limited, Vedanta Group's private energy business includes manufacturing power conductors and cables, building and operating power transmission lines, and generating ...