India, May 15 -- State-run oil marketing companies on Friday increased petrol and diesel prices by Rs.3 per litre each, days after Prime Minister Narendra Modi appealed to citizens to adopt austerity measures to conserve foreign exchange by reducing imports of crude oil and precious metals.

The retail price of petrol in Delhi has now risen from Rs.94.77 per litre to Rs.97.77 per litre, while diesel prices have increased from Rs.87.67 per litre to Rs.90.67 per litre.

The increase, however, varied across cities due to differences in local levies. According to revised rates, petrol in Kolkata now costs Rs.108.74 per litre, an increase of Rs.3.29 per litre, while in Mumbai it rose to Rs.106.68 per litre, up by Rs.3.14. In Chennai, petrol pr...