NHPC Standalone December 2018 Net Sales at Rs 1,571.37 crore, up 4.9% Y-o-Yhttps://www.moneycontrol.com/news/business/earnings/nhpc-standalone-december-2018-net-sales-at-rs-1571-37-crore-up-4-9-y-o-y-3512451.html#NHPC