According to estimates, petrol may see an increase of Rs1.54 per litre, while high-speed diesel is likely to go up by Rs4.79 per litre.
Prices of kerosene and light diesel oil are projected to climb by Rs3.06 and Rs3.68 per litre, respectively.
The Oil and Gas Regulatory Authority (OGRA) will submit its final calculations to the Petroleum Division on September 15.
The Petroleum Division and the Ministry of Finance will forward the calculations, including levy and tax adjustments, to the PM, who will give the final approval.