While petrol and diesel prices were last raised on October 16, the daily rate of decline has been around 15 paise in the last few days. A litre of petrol today costs ₹77.43 in Delhi, ₹82.94 in Mumbai, ₹80.42 in Chennai and ₹78.05 in Bengaluru while diesel costs ₹72.19 in Delhi, ₹75.64 in Mumbai, ₹76.30 in Chennai and ₹72.58 in Bengaluru.