Petrol-diesel prices continue to rise for the sixth consecutive day. After implementing the new rates the price of one liter petrol in Delhi has been increased to Rs 74.57 while one litre of diesel is being sold at Rs 72.81. In the last six days, the price of petrol has increased by Rs 3.31, while a litre of diesel has become expensive by Rs 3.42. The hike in prices began from June 6 when petrol was being sold in Delhi at Rs 71.26 and diesel at Rs 69.39 per liter.