All India Power Engineers Federation (AIPEF) on Thursday demanded an audit of independent power producers by the Comptroller and Auditor General (CAG) after thermal power stations were allowed blending of imported coal during the ongoing dry fuel shortage. In a letter shot off to Union Power Minister R K Singh, the AIPEF has stated that the blending of imported coal will result in a hike in tariff by Rs 1.15 per unit.
