Petrol and diesel prices were hiked across the four metro cities on Monday, July 5, according to data released by the Indian Oil Corporation (IOC). In the national capital, petrol prices are inching towards the century mark; the prices were hiked by 35 paise from Rs 99.51 per litre to Rs 99.86 per litre. Diesel prices were however constant at Rs 89.36 per litre. In Mumbai, petrol prices were hiked by 24 paise from Rs 105.58 per litre to Rs 105.92 per litre.