The common man is livid with the Rs. 7.50Litre hike in petrol prices. This hike will have a direct impact on the Economy, Rupee and food inflation. This has burdened the "aam aadmi" even more. In the steepest ever increase, petrol rates were today raised by a massive Rs 7.54 per litre, the first hike in rates in six months. Petrol price in Delhi has been hiked by Rs 7.54 per litre to Rs 73.18 a litre with effect from midnight tonight, state-owned oil companies said in separate but identical press announcements.