New Delhi, Oct. Oct 11 : The prices of petrol and diesel prices rose again on Monday completing one full week of increases that has taken in retail rate to record high levels across the country. In the national capital, petrol price rose 30 paise per litre and diesel was hiked by 35 paise per litre. The prices of petrol and diesel have crossed the Rs 100 per litre mark in many states, pinching the common man's pocket. In Delhi, petrol is now retailing at Rs 104.44 per litre and diesel is available at Rs 93.17 per litre after the latest price revision. On the other hand, in India's financial capital, Mumbai, petrol became costlier by 29 paise per litre and its rate stands at Rs 110.41 the highest across all the four metro cities. Diesel costs Rs 101.03 for one litre in Mumbai, a hike of 37 paise. There has been a constant rise in the prices of petrol and diesel for the past six days and the rates are soaring at an all-time high. The prices of petrol and diesel remained steady on October 4, 2021 but saw a hike after that. Diesel prices have now increased on 15 out of the last 18 days taking up its retail price by Rs 4.55 per litre in Delhi. The prices of diesel has increased between 20-30 paisa per litre so far but since Wednesday it has been increasing by 35 paisa per litre. With diesel price rising sharply, the fuel is now available at over Rs 100 a litre in several parts of the country. This dubious distinction was earlier available to petrol that had crossed Rs 100 a litre mark across the country a few months earlier. Petrol prices had maintained stability since September 5 but oil companies finally raised its pump prices last week and this week given a spurt in the product prices lately. Petrol prices have also risen on 12 of the previous 14 days taking up its pump price by Rs 3.25 per litre. OMCs had preferred to maintain their watch prices on global oil situation before making any revision in prices. This is the reason why petrol prices were not revised for last three weeks. But extreme volatility in global oil price movement has now pushed OMCs to effect the increase. Across the country as well petrol and diesel increased between 30-40 paisa per litre but their retail rates varied depending on the level of local taxes in the state. Crude price has been on a surge rising over three year high level of over $83.5 a barrel now. Since September 5, when both petrol and diesel prices were revised, the price of petrol and diesel in the international market is higher by around $9-10 per barrel as compared to average prices during August. Under the pricing formula adopted by oil companies, rates of petrol and diesel are to be reviewed and revised by them on a daily basis. The new prices becomes effective from morning at 6 a.m. The daily review and revision of prices is based on the average price of benchmark fuel in the international market in the preceding 15-days, and foreign exchange rates. But, the fluctuations in global oil prices have prevented OMCs to follow this formula in totality and revisions are now being made with longer gaps. This has also prevented companies from increasing fuel prices whenever their is a mismatch between globally arrived and pump price of fuel. /IANS