Oil Marketing Companies Monday hiked the price of petrol and diesel by 29 and 30 paise, respectively. It was the 24th hike since 4 May. Petrol and diesel are trading at INR96.41 and INR87.28 per litre each in Delhi. Citizens are paying INR102.58 and INR94.70 for every litre of petrol and diesel in Mumbai. The two fuels are priced at INR97.69 and INR91.92, respectively, in Chennai.