RailTel Corporation lists with 16% premium on NSE RailTel surges over 50% in grey market premium: Know about Railtel IPO before investing RailTel Corporation of India on Friday got listed on NSE with a premium of 16 per cent against its issue price of Rs 94 apiece. Notwithstanding the sell-off in the broader market, the stock made a debut at Rs 109, reflecting a gain of 15.95 per cent as compared to the issue price on NSE. At BSE, shares of the company got listed at Rs 104.60, reflecting a gain of 11.27 per cent. The company's market valuation stood at Rs 3,846.45 crore. The initial public offer of the telecom infrastructure provider was subscribed over 42 times.