The state-run OMCs on Tuesday increased price of petrol by 20 and 18 paise per litre for New Delhi and Mumbai. Following the rise, the new rate of petrol in the national and financial capital stands at Rs 79.76 and Rs 86.54 per litre respectively. The diesel prices were hiked by 55 and 52 paise per litre, following new rate stands at Rs 79.40 and Rs 77.46 per litre.