Sterling Tools Standalone September 2018 Net Sales at Rs 139.35 crore, up 20.35% Q-o-Qhttps://www.moneycontrol.com/news/business/earnings/sterling-tools-standalone-september-2018-net-sales-at-rs-139-35-crore-up-20-35-q-o-q-3151911.html#STERTOOLS