Opto Circuits Standalone September 2018 Net Sales at Rs 25.63 crore, up 172.43% Q-o-Qhttps://www.moneycontrol.com/news/business/earnings/opto-circuits-standalone-september-2018-net-sales-at-rs-25-63-crore-up-172-43-q-o-q-3105611.html#OPTOCIRCUI