Guj State Petro Standalone September 2018 Net Sales at Rs 598.33 crore, up 71.31% Q-o-Qhttps://www.moneycontrol.com/news/business/earnings/guj-state-petro-standalone-september-2018-net-sales-at-rs-598-33-crore-up-71-31-q-o-q-3129591.html#GSPL