Sample this. Recently, coal secretary S.S. Bopparai wrote a letter to state governments, demanding speedy clearance of total seb outstandings of Rs 6,500 crore to public sector coal companies. Bopparai also cited the example of the Madhya Pradesh government which had, in an unprecedented move, directed its electricity board to pay 60 per cent of the annual revenue accrued, following the recent tariff revision, to the coal company with full payment of current monthly bills. And last week, the Delhi Vidyut Board (dvb) reached a temporary truce with the National Thermal Power Corporation (ntpc) by agreeing to regular monthly payments to avoid the embarrassment of having supplies cut off. Reason: power minister Rangarajan Kumaramangalam's salvo to all chief ministers to get their respective boards to clear dues.