Rolta Standalone September 2018 Net Sales at Rs 303.44 crore, down 28.13% Q-o-Qhttps://www.moneycontrol.com/news/business/earnings/rolta-standalone-september-2018-net-sales-at-rs-303-44-crore-down-28-13-q-o-q-3153461.html#ROLTA