NEW DELHI - India Wednesday allowed state-run oil firms to increase prices of transport fuels, resulting in gasoline becoming dearer by Rs.4 per litre and diesel by Rs.2 per litre, following successive increase in global crude prices.

Petroleum Minister Murli Deora told reporters at a hurriedly convened press conference here that the new prices take effect from the midnight of Wednesday. He made the announcement soon after a meeting with Prime Minister Manmohan Singh.

“The prices of kerosene and cooking gas are not being changed,” Deora said, adding the government will continue to incur a subsidy of Rs.15.26 per litre and Rs.92.96 per cylinder on these two fuels, respectively.

He said even in the case of petrol and diesel, oil-marketing companies will continue to incur a loss of Rs.2 per litre and Rs.1.62 on petrol and diesel, respectively, on account of selling these fuels below cost.

According to Petroleum Secretary R.S. Pandey, the state-run oil companies will face an overall subsidy burden of Rs.30,000 crore ($6 billion) during this fiscal if global crude prices remain firm at the current level.

The under-recoveries (losses) have reached a level where it has become inevitable to revisit the prices, he said, adding the government will continue to monitor the global prices and take appropriate decisions.

He said the Indian basket of crude oil was ruling at $70.29 per barrel as of Tuesday, against $58.80 on May 20 and around $40 in December last year. But the burden on oil companies will not be more than what it was in the past.

The move, which just comes just a day ahead of parliament resuming legislative business Thursday, is bound to invoke strong protests by the opposition. The Left parties had already threatened an agitation.