Early this week, retail prices of petrol and diesel reached new highs, thanks to the steady rise in the price of international crude oil. The price of the Indian basket of crude oil has jumped 37 per cent in the last 10 months to $63.80 in March. Oil Minister Dharmendra Pradhan has done well to reject demands for lowering the excise duty on fuel and has argued that the only way the incidence of taxes on petroleum products can be reduced is by including them in the goods and services tax (GST) regime. But this cannot be done in a hurry. States and the Centre will have to agree to a timeline without causing any undue shock to their revenues. That is because petrol and diesel account for a large chunk of total indirect tax revenues for both. This share increased significantly after international crude oil prices started declining from the middle of 2014 and the Centre as well as many states took advantage of the lower prices to increase excise duty and sales tax on petrol and diesel, respectively. Now that crude oil prices have begun rising, there is a demand for rolling back those duty increases. However, conceding such demands can be disastrous for the fiscal situation of the Centre and the states.

