In Delhi, petrol costs Rs 82.26 and in Mumbai at 87.73 rupees. The price of diesel would be Rs. 74.35 per liter (Rs. 0.24 a liter) and Mumbai (Rs 77.93 a liter). (Rs 0.25 / liter)The price of petrol in Kolkata is Rs 84.09. Diesel price is Rs 75.96.Petrol in Chennai will cost Rs 85.50 per liter and Rs 78.35 per liter. Petrol price hike rises to Rs 74.49 Petrol price has been revised since June 15, 2017. This is the previous practice for restructuring the petrol price every 15 days.