New Delhi, May 15 -- Petrol and diesel prices were increased by Rs.3 per litre on Friday after state-owned oil firms ended a four-year record hiatus in rate revisions.

Petrol price was hiked to Rs.97.77 per litre from Rs.94.77 in the national capital. Diesel now costs Rs.90.67 per litre, up from Rs.89.67 previously, according to industry sources.

The hike, however, varies across cities due to differences in local levies.

According to the revised rates, petrol in Kolkata now costs Rs.108.74 per litre, an increase of Rs.3.29, while in Mumbai it rose by Rs.3.14 to Rs.106.68 per litre. In Chennai, petrol prices climbed by Rs.2.83 to Rs.103.67 per litre, a company executive said.

For regular diesel, pump prices in Kolkata increased by Rs.3...