New Delhi, Oct 3 (TIWN): Petrol and diesel prices rose simultaneously for the fourth day running on Sunday amid volatility in global oil prices with benchmark crude remaining at a high level of over $ 79 a barrel.

Accordingly, diesel price increased by 30 paise per litre in the national capital to Rs 90.77 per litre on Sunday while petrol price increased by 25 paise per litre to Rs 102.39 a litre, according to Indian Oil Corporation, the country's largest fuel retailer.  Diesel price has now increased on eight days in the last 10 days taking up its retail price by Rs 2.15 per litre in Delhi. Diesel price was raised on Friday by 20 paise per litre and again by 25 paise per litre each on Sunday, Monday and Tuesday and by 30 paise per litre on Thursday, Friday, Saturday and Sunday.  Petrol prices had maintained stability since September 5, but the oil companies finally raised the pump prices this week given a spurt in the product prices lately. Petrol price has also risen on five of the previous six days taking up its primo price by Rs 1.20 per litre.