Petrol and diesel prices in the country on Saturday touched new all-time highs after rates were increased for the fourth time this week. Petrol and diesel priceswere hiked by 25 paise per litre each, according to a price notification from oil marketing companies. This took the petrol price in Delhi to Rs 85.70 per litre and in Mumbai to Rs 92.28. Diesel rate climbed to Rs 75.88 a litre in the national capital and to Rs 82.66 per litre in Mumbai, the price data showed. This is the second consecutive day of rate increase and the fourth this week. In all prices have gone up by Re 1 per litre this week. Fuel prices, which vary from state to state depending on local sales tax or VAT, are now at record highs in the country, prompting cries for a cut in excise duty to ease the burden on consumers.