Blue Dart Standalone December 2018 Net Sales at Rs 855.45 crore, up 21.41% Y-o-Yhttps://www.moneycontrol.com/news/business/earnings/blue-dart-standalone-december-2018-net-sales-at-rs-855-45-crore-up-21-41-y-o-y-3458241.html#BLUEDART