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In the past few months, retail prices of petrol and diesel have consistently increased and have reached all-time high levels. On September 24, 2018, the retail price of petrol in Delhi was Rs 82.72/litre, and that of diesel was Rs 74.02/litre. In Mumbai, these prices were even higher at Rs 90.08/litre and Rs 78.58/litre, respectively.
The difference in retail prices in the two cities is because of the different tax rates levied by the respective state governments on the same products. This blog post explains the major tax components in the price structure of petrol and diesel and how tax rates vary across states. It also analyses the shift in the taxation of these products, its effect on retail prices, and the consequent revenue generated by the central and state governments.
What are the components of the price structure of petrol and diesel?
Retail prices of petrol and diesel in India are revised by oil companies on a daily basis, according to changes in the price of global crude oil. However, the price paid by oil companies makes up 51% of the retail price in case of petrol, and 61% in the case of diesel (Table 1). The break-up of retail prices of petrol and diesel in Delhi, as on September 24, 2018, shows that over 45% of the retail price of petrol comprises central and states taxes. In the case of diesel, this is close to 36%.
At present, the central government has the power to tax the production of petroleum products, while states have the power to tax their sale. The central government levies an excise duty of Rs 19.5/litre on petrol and Rs 15.3/litre on diesel. These make up 24% and 21% of the retail prices of petrol and diesel, respectively.
While excise duty rates are uniform across the country, states levy sales tax/value added tax (VAT), the rates of which differ across states. The figure below shows the different tax rates levied by states on petrol and diesel, which results in their varying retail prices across the country. For instance, the tax rates levied by states on petrol ranges from 17% in Goa to 39% in Maharashtra.
Note that unlike excise duty, sales tax is an ad valorem tax, i.e., it does not have a fixed value, and is charged as a percentage of the price of the product. This implies that while the excise duty component of the price structure is fixed, the sales tax component is charged as a proportion of the price paid by oil companies, which in turn depends on the global crude oil price. With the recent increase in the global prices, and subsequently the retail prices, some states such as Rajasthan, Andhra Pradesh, West Bengal, and Karnataka have announced tax rate cuts.
How have retail prices in India changed vis-à-vis the global crude oil price?
India’s dependence on imports for consumption of petroleum products has increased over the years. For instance, in 1998-99, net imports were 69% of the total consumption, which increased to 93% in 2017-18. Because of a large share of imports in the domestic consumption, any change in the global price of crude oil has a significant impact on the domestic prices of petroleum products. The following figures show the trend in price of global crude oil and retail price of petrol and diesel in India, over the last six years.
The global price of crude oil (Indian basket) decreased from USD 112/barrel in September 2012 to USD 28/barrel in January 2016. Though the global price dropped by 75% during this period, retail prices of petrol and diesel in India decreased only by 13% and 5%, respectively. This disparity in decrease of global and Indian retail prices was because of increase in taxes levied on petrol and diesel, which nullified the benefit of the sharp decline in the global price. Between October 2014and June 2016, the excise duty on petrol increased from Rs 11.02/litre to Rs 21.48/litre. In the same period, the excise duty on diesel increased from Rs 5.11/litre to Rs 17.33/litre.
Over the years, the central government has used taxes to prevent sharp fluctuations in the retail price of diesel and petrol. For instance, in the past, when global crude oil price has increased, duties have been cut. Since January 2016, the global crude oil price has increased by 158% from USD 28/barrel to USD 73/barrel in August 2018. However, during this period, excise duty has been reduced only once by Rs 2/litre in October 2017. While the central government has not signalled any excise duty cut so far, it remains to be seen if any rate cut will happen in case the global crude oil price rises further. With US economic sanctions on Iran coming into effect on November 4, 2018, India may face a shortfall in supply since Iran is India’s third largest oil supplier. Moreover, Organization of Petroleum Exporting Countries (OPEC) and Russia have not indicated any increase in supply from their side yet to offset the possible effect of sanctions. As a result, in a scenario with no tax rate cut, this could increase the retail prices of petrol and diesel even further.
How has the revenue generated from taxing petroleum products changed over the years?
As a result of successive increases in excise duty between November 2014 and January 2016, the year-on-year growth rate of excise duty collections increased from 27% in 2014-15 to 80% in 2015-16. In comparison, the growth rate of sales tax collections was 6% in 2014-15 and 4% in 2015-16. The figure below shows the tax collections from the levy of excise duty and sales tax on petroleum products. From 2011-12 to 2017-18, excise duty and sales tax collections grew annually at a rate of 22% and 11%, respectively.
How is this revenue shared between centre and states?
Though central taxes are levied by the centre, it gets only 58% of the revenue from the levy of these taxes. The rest 42% is devolved to the states as per the recommendations of the 14th Finance Commission. However, excise duty levied on petrol and diesel consists of two broad components – (i) excise duty component, and (ii) road and infrastructure cess. Of this, only the revenue generated from the excise duty component is devolved to states. Revenue generated by the centre from any cess is not devolved to states.
The cess component was increased by Rs 2/litre to Rs 8/litre in the Union Budget 2018-19. However, this was done by reducing the excise duty component by the same amount, so as to keep the overall rate the same. Essentially this provision shifted the revenue of Rs 2/litre of petrol and diesel from states’ divisible pool of taxes to the cess revenue, which is entirely with the centre. This cess revenue is earmarked for financing infrastructure projects.
At present, of the Rs 19.5/litre excise duty levied on petrol, Rs 11.5/litre is the duty component, and Rs 8/litre is the cess component. Therefore, accounting for 42% share of states in the duty component, centre effectively gets a revenue of Rs 14.7/litre, while states get Rs 4.8/litre. Similarly, excise duty of Rs 15.3/litre levied on diesel consists of a cess component of Rs 8/litre. Thus, excise duty on diesel effectively generates revenue of Rs 12.2/litre for the centre and Rs 3.1/litre for states.
Recently, the President repromulgated the Securities Laws (Amendment) Ordinance, 2014, which expands the Securities and Exchange Board Act’s (SEBI) powers related to search and seizure and permits SEBI to enter into consent settlements. The President also promulgated the Scheduled Castes and the Scheduled Tribes (Prevention of Atrocities) Amendment Ordinance, 2014, which establishes special courts for the trial of offences against members of Scheduled Castes and Scheduled Tribes. With the promulgation of these two Ordinances, a total of 25 Ordinances have been promulgated during the term of the 15th Lok Sabha so far. Ordinances are temporary laws which can be issued by the President when Parliament is not in session. Ordinances are issued by the President based on the advice of the Union Cabinet. The purpose of Ordinances is to allow governments to take immediate legislative action if circumstances make it necessary to do so at a time when Parliament is not in session. Often though Ordinances are used by governments to pass legislation which is currently pending in Parliament, as was the case with the Food Security Ordinance last year. Governments also take the Ordinance route to address matters of public concern as was the case with the Criminal Law (Amendment) Ordinance, 2013, which was issued in response to the protests surrounding the Delhi gang rape incident. Since the beginning of the first Lok Sabha in 1952, 637 Ordinances have been promulgated. The graph below gives a breakdown of the number of Bills passed by each Lok Sabha since 1952, as well as the number of Ordinances promulgated during each Lok Sabha. 
Ordinance Making Power of the President The President has been empowered to promulgate Ordinances based on the advice of the central government under Article 123 of the Constitution. This legislative power is available to the President only when either of the two Houses of Parliament is not in session to enact laws. Additionally, the President cannot promulgate an Ordinance unless he ‘is satisfied’ that there are circumstances that require taking ‘immediate action’. Ordinances must be approved by Parliament within six weeks of reassembling or they shall cease to operate. They also cease to operate in case resolutions disapproving the Ordinance are passed by both Houses. History of Ordinances Ordinances were incorporated into the Constitution from Section 42 and 43 of the Government of India Act, 1935, which authorised the then Governor General to promulgate Ordinances ‘if circumstances exist which render it necessary for him to take immediate action’. Interestingly, most democracies including Britain, the United States of America, Australia and Canada do not have provisions similar to that of Ordinances in the Indian Constitution. The reason for an absence of such a provision is because legislatures in these countries meet year long. Ordinances became part of the Indian Constitution after much debate and discussion. Some Members of the Constituent Assembly emphasised that the Ordinance making power of the President was extraordinary and issuing of Ordinances could be interpreted as against constitutional morality. Some Members felt that Ordinances were a hindrance to personal freedom and a relic of foreign rule. Others argued that Ordinances should be left as a provision to be used only in the case of emergencies, for example, in the breakdown of State machinery. As a safeguard, Members argued that the provision that a session of Parliament must be held within 6 months of passing an Ordinance be added. Repromulgation of Ordinances Ordinances are only temporary laws as they must be approved by Parliament within six weeks of reassembling or they shall cease to operate. However, governments have promulgated some ordinances multiple times. For example, The Securities Laws (Amendment) Ordinance, 2014 was recently repromulgated for the third time during the term of the 15th Lok Sabha. Repromulgation of Ordinances raises questions about the legislative authority of the Parliament as the highest law making body. In the 1986 Supreme Court judgment of D.C. Wadhwa vs. State of Bihar, where the court was examining a case where a state government (under the authority of the Governor) continued to re-promulgate Ordinances, the Constitution Bench headed by Chief Justice P.N. Bhagwati observed: “The power to promulgate an Ordinance is essentially a power to be used to meet an extraordinary situation and it cannot be allowed to be "perverted to serve political ends". It is contrary to all democratic norms that the Executive should have the power to make a law, but in order to meet an emergent situation, this power is conferred on the Governor and an Ordinance issued by the Governor in exercise of this power must, therefore, of necessity be limited in point of time.” 
Thanks to Vinayak Rajesekhar for helping with research on this blog post.
