NEW DELHI - The AAP government Wednesday halved the power tariff for up to 400 units per month and said it would supply 20,000 litres of water free to Delhi's metered households from March 1 - keeping its two big-ticket poll promises. While the cut in electricity rates through subsidy will benefit over 36 lakh families - 90 percent of the domestic consumers - the free water will be provided to all the 18 lakh...