The Supreme Court verdict dismissing the petition of telecom companies regarding the adjusted gross revenue (AGR) calculation has made things tougher for Vodafone Idea. The cash-strapped telco was looking to save close to Rs 30,000 crore if the claimed errors in calculating the AGR dues had been corrected. With this cushion gone, the telecom industry is at the risk of turning into a duopoly. As British telco Vodafone Plc has made it clear that it won’t throw good money after bad, the survival of its India joint venture will critically depend on its fund-raising ability, relief in terms of deferred