NEW DELHI: State-run fuel retailers on Saturday raised petrol and diesel prices by less than Rs 1 per litre, dealers said, marking the third hike this month as the government seeks to offset losses stemming from elevated crude oil prices amid the Iran conflict, Reuters reported.In New Delhi, petrol prices were increased by Rs 0.87 per litre to Rs 99.51, while diesel prices rose by Rs 0.91 to Rs 92.49 per litre, according to dealers.