New Delhi ; Diesel price has been hiked by one rupee 26 paise a litre and Petrol by just 5 paise including the VAT. The new rates came into effect last midnight. With this, diesel will cost 55 rupees 19 paise in Delhi, 57 rupees 39 paise in Kolkata, 60 rupees 55 paise in Mumbai and 56 rupees 78 paise in Chennai. For petrol, the consumer will have to pay 65 rupees 65 paise per litre in Delhi, 68 rupees 50 paise in Kolkata, 70 rupees 23 paise in Mumbai and 65 rupees 15 paise in Chennai. In a statement, Indian Oil Corporation said, the international prices of petrol and diesel and rupee- dollar exchange rate warrant an increase in petrol and diesel prices.