New Delhi, Nov 14 (ANI): In a major jolt to the poll bound Delhi, the power tariff in the national capital has been hiked by up to seven per cent by the Delhi Electricity Regulatory Commission and will come into effect from Saturday. The regulator hiked the tariff by levying surcharge heeding to the demands of the three private power distribution companies. Meanwhile, the Congress slammed the Modi government at the centre over the hike. The BJP, however, said that it is not responsible for the tariff hike but would try to talk to those responsible for it if they come to power in Delhi.