Castrol Standalone December 2018 Net Sales at Rs 1,033.40 crore, up 6.5% Y-o-Yhttps://www.moneycontrol.com/news/business/earnings/castrol-standalone-december-2018-net-sales-at-rs-1033-40-crore-up-6-5-y-o-y-3458441.html#CASTROLIND