NEW DELHI: State and independent power producers will have to cough up ten times the price of domestic coal to procure imported coal for 10% blending as mandated by the Centre. Government officials told TNIE that the domestic coal costs nearly Rs 1,700 to Rs 2,000 per tonne to the power gencos but the imported produce would cost nearly Rs 17,000 to Rs 20,000 a tonne (after including landing costs).