Gammon Infra Standalone September 2018 Net Sales at Rs 9.53 crore, down 71.8% Q-o-Qhttps://www.moneycontrol.com/news/business/earnings/gammon-infra-standalone-september-2018-net-sales-at-rs-9-53-crore-down-71-8-q-o-q-3115151.html#GAMMNINFRA