Vindhya Telelin Standalone December 2018 Net Sales at Rs 522.86 crore, up 63.15% Y-o-Yhttps://www.moneycontrol.com/news/business/earnings/vindhya-telelin-standalone-december-2018-net-sales-at-rs-522-86-crore-up-63-15-y-o-y-3518931.html#VINDHYATEL