The dimension of the scam relating to inflation of power tariffs by, among other things, over-invoicing imported coal has become considerably bigger. It has now come to light that electricity generating companies are seeking to obtain compensatory tariffs from regulators. In addition, particular firms in the Adani and Essar Groups, have allegedly over-invoiced imports of equipment. The total size of the scam is currently estimated at Rs 50,000 crore, if not more.