Petrol price has been increased by Rs 2.19 a litre and diesel by 98 paise per litre. The new rate came into effect last midnight. Indian Oil Corporation, IOC in a statement said, Petrol is now available in Delhi at Rs 61.87 per litre compared to earlier Rs 59.68 . Similarly, a litre of diesel is costing Rs 49.31 now compared to Rs 48.33 a litre. <br/><br/>The hike comes on the back of a steep Rs 3.07 a litre increase on March 17 and a Rs 1.90 a litre hike in diesel rates. While this is the second straight increase in petrol price, this is the fourth straight fortnightly increase in diesel rates. IOC attributed the hike to current level of international product prices of petrol and diesel and the rupee-US dollar exchange rate.