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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.

Table 1

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.

Effective Sales Tax

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.

Petrol

Diesel

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.

Tax revenue

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.

The Union government’s Cabinet Committee on Security recently gave clearance to the Home Ministry’s NATGRID project.  The project aims to allow investigation and law enforcement agencies to access real-time information from data stored with agencies such as the Income Tax Department, banks, insurance companies, Indian Railways, credit card transactions, and more.  NATGRID, like a number of other government initiatives (UIDAI), is being established through governmental notifications rather than legislation passed in Parliament.  The examination of this issue requires an assessment of the benefits of legislation vis-a-vis government notifications. Government notifications can be issued either under a specific law, or independent of a parent law, provided that the department issuing such notification has the power to do so.  Rules, regulations which are notified have the advantage of flexibility since they can be changed without seeking Parliamentary approval. This advantage of initiating projects or establishing institutions through government notifications is also potentially of detriment to the system of checks and balances that a democracy rests on.  For, while legislation takes a longer time to be enacted (it is discussed, modified and debated in Parliament before being put to vote), this also enables elected representatives to oversee various dimensions of such projects.  In the case of NATGRID, the process would provide Parliamentarians the opportunity to debate the conditions under which private individual information can be accessed, what information may be accessed, and for what purpose.  This time consuming process is in fact of valuable import to projects such as NATGRID which have a potential impact on fundamental rights. Finally, because changing a law is itself a rigorous process, the conditions imposed on the access to personal information attain a degree of finality and cannot be ignored or deviated from.  Government rules and regulations on the other hand, can be changed by the concerned department as and when it deems necessary.  Though even governmental action can be challenged if it infringes fundamental rights, well-defined limits within laws passed by Parliament can help provide a comprehensive set of rules which would prevent their infringement in the first place. The Parliamentary deliberative process in framing a law is thus even more important than the law itself.  This is especially so in cases of government initiatives affecting justiciable rights.  This deliberative process, or the potential scrutiny of government drafted legislation on the floor of Parliament ensures that limitations on government discretion are clearly laid down, and remedies to unauthorised acts are set in stone.  This also ensures that the authority seeking to implement the project is The other issue pertains to the legal validity of the project itself.  Presently, certain departmental agencies maintain databases of personal information which helps them provide essential services, or maintain law and order.  The authority to maintain such databases flows from the laws which define their functions and obligations.  So the power of maintaining legal databases is implicit because of the nature of functions these agencies perform.  However, there is no implicit or explicit authorization to the convergence of these independent databases. One may argue that the government is not legally prevented from interlinking databases.  However, the absence of a legal challenge to the creation of NATGRID does not take away from the importance of establishing such a body through constitutionally established deliberative processes.  Therefore, the question to be asked is not whether NATGRID is legally or constitutionally valid, but whether it is important for Parliament to oversee the establishment of NATGRID. In October 2010, the Ministry of Personnel circulated an “Approach paper for a legislation on privacy”.  The paper states: “Data protection can only be ensured under a formal legal system that prescribes the rights of the individuals and the remedies available against the organization that breaches these rights. It is imperative, if the aim is to create a regime where data is protected in this country, that a clear legislation is drafted that spells out the nature of the rights available to individuals and the consequences that an organization will suffer if it breaches these rights.” As the lines above exemplify, it is important for a robust democracy to codify rights and remedies when such rights may be potentially affected.  The European Union and the USA, along with a host of other countries have comprehensive privacy laws, which also lay down conditions for access to databases, and the limitations of such use.  The UIDAI was established as an executive authority, and still functions without statutory mandate.  However, a Bill seeking to establish the body statutorily has been introduced, and its contents are being debated in the Parliamentary Standing Committee on Finance and the Bill has also been deliberated on by civil society at large. A similar approach is imperative in the case of NATGRID to uphold the sovereign electorate’s right to oversee institutions that may affect it in the future.