Oil-marketing companies increased the prices of petrol, whereas diesel prices were unchanged across the four metro cities on Sunday. Petrol is priced at Rs. 72.86 per litre in New Delhi, Rs. 74.93 per litre in Kolkata, Rs.78.48 per litre in Mumbai and Rs. 75.67 per litre in Chennai, according to state-run Indian Oil Corporation’s (IOC) website, iocl.com. Petrol prices were hiked by 5 paise in Delhi, Mumbai and Chennai, while it was increased by 4 paise in Kolkata. Diesel rates stood at Rs. 66.60 per litre in New Delhi, Rs. 68.39 per litre in Kolkata, Rs. 69.76 per litre in Mumbai and Rs. 70.37 per litre in Chennai.