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Gas Supply By Reliance | SC Clarifies taxation of inter-State sales lies exclusively within constitutional domain of Union


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16 May 2026
Categories: Case Analysis Supreme Court Latest News

Recently, the Supreme Court held that the supply of natural gas from Andhra Pradesh to purchasers in Uttar Pradesh pursuant to pre-existing Gas Sales and Purchase Agreements constituted an inter-State sale under Section 3 of the Central Sales Tax Act, 1956, thereby placing such transactions beyond the taxing jurisdiction of the State of Uttar Pradesh under the VAT regime. While dismissing the State’s challenge against the Allahabad High Court judgment, the Court strongly emphasised that fiscal federalism under the Constitution mandates strict adherence to constitutional limitations on taxing powers and warned against overlapping taxation that could destabilise commercial certainty and inter-State trade.

Brief facts:

The case stemmed from a dispute over the levy of Value Added Tax by the State of Uttar Pradesh on the supply of natural gas transported from Andhra Pradesh to industrial consumers in Uttar Pradesh pursuant to Gas Sales and Purchase Agreements executed under the Central Sales Tax regime. The controversy arose after the State authorities treated the transactions as intra-State sales under the Uttar Pradesh Value Added Tax Act, 2008, on the ground that the gas remained unascertained and co-mingled during transportation through pipelines and became identifiable only upon delivery within Uttar Pradesh. Reliance Industries challenged the assessment proceedings, contending that the movement of gas from one State to another was directly occasioned by pre-existing contracts of sale and therefore constituted inter-State sales under Section 3 of the Central Sales Tax Act, 1956. While the Allahabad High Court quashed the VAT levy and related assessment orders, the State of Uttar Pradesh approached the Apex Court challenging the findings and refund directions issued by the High Court.

Contentions of the Appellant:

The State of Uttar Pradesh argued that the movement of natural gas through common carrier pipelines did not amount to a concluded inter-State sale under Section 3 of the CST Act because the gas remained fungible, unascertained, and incapable of individual identification during transportation. The Counsel contended that actual appropriation and ascertainment of the gas occurred only upon delivery at the purchaser’s premises in Uttar Pradesh, where metering and identification allegedly took place. On this basis, the State maintained that the sale was completed within Uttar Pradesh and therefore attracted VAT under the State legislation. The Appellants further argued that the GSPA merely reflected an intention to sell future goods and could not by itself determine the situs of taxation or bind tax authorities under Article 265 of the Constitution. Reliance was placed on the constitutional history of Article 286, the doctrine relating to situs of sale, and the principle that taxing liability must be strictly governed by statutory provisions rather than contractual stipulations.

Contentions of the Respondent:

Reliance Industries and the purchaser companies contended that the transactions squarely fell within Section 3(a) of the CST Act as the movement of natural gas from Andhra Pradesh to Uttar Pradesh was directly occasioned by pre-existing contracts of sale under the GSPA. The Counsel argued that delivery, transfer of title, possession, and risk took place in Andhra Pradesh, after which transportation was undertaken by the buyers through separate transportation agreements. The Respondents emphasised that once the movement of goods across State boundaries was intrinsically linked to the contract of sale, the transactions necessarily acquired the character of inter-State sales irrespective of where the property in goods ultimately passed. Reliance was also placed on prior judgments of the Supreme Court, including State of Andhra Pradesh v. NTPC and Hyderabad Engineering Industries v. State of A.P., to contend that subsequent co-mingling or re-metering of fungible goods does not alter the inter-State nature of the transaction. The Counsel further submitted that the State of Uttar Pradesh itself had recognised the transactions as inter-State sales by issuing Form-C declarations under the CST regime and could not subsequently adopt a contradictory stand.

Observation of the Court:

The Division Bench of Justice J.K. Maheshwari and Justice Atul S. Chandurkar observed that “The Constitution of India maintains principle of exclusivity in allocating various taxations to either the Parliament or to the State legislature. Corollary to aforesaid principle is that, the construction of the taxing entry which may lead to over-lapping must be eschewed. This Court has to give primacy to this about purpose and ensure that taxation do not overlap and thereby avoiding double taxation.”

The Court observed that the present dispute was not merely confined to the interpretation of taxing statutes, but involved larger constitutional questions concerning fiscal federalism, inter-State trade, and distribution of taxing powers between the Union and the States. The Bench emphasised that India’s constitutional framework was carefully designed to preserve economic unity by preventing overlapping taxation among States. Referring to the constitutional scheme under Articles 246, 269 and 286, the Court noted that taxation powers under the Constitution are distributed on the principle of exclusivity and that any interpretation leading to multiple taxation or encroachment into Parliament’s domain must be avoided. The Court further underlined that stability and certainty in fiscal laws are essential, particularly in matters involving international consortiums and foreign investments, as unpredictability in taxation adversely affects commercial confidence and economic growth.

The Bench observed that the decisive test under Section 3(a) of the Central Sales Tax Act, 1956, is whether the movement of goods from one State to another is occasioned by a contract of sale. The Court explained that once there exists a direct nexus between the sale transaction and inter-State movement of goods, the transaction acquires the character of an inter-State sale irrespective of the place where title ultimately passes. Examining the Gas Sales and Purchase Agreements executed between Reliance Industries and the buyers, the Court found that the movement of natural gas from Andhra Pradesh to Uttar Pradesh was not incidental or accidental, but was an inseparable contractual obligation arising out of the agreements themselves. The Bench therefore rejected the State’s contention that the sales became intra-State transactions merely because the gas was ultimately consumed within Uttar Pradesh.

The Court held that the State of Uttar Pradesh could not levy VAT on the transactions by contending that the natural gas remained unascertained or fungible during transportation through common carrier pipelines. The Bench clarified that once the gas was delivered in Andhra Pradesh pursuant to the contractual terms and entered the transportation system under the buyer’s arrangements, the inter-State movement had already commenced under the contract of sale. According to the Court, subsequent co-mingling of gas or re-metering during transportation did not alter the legal nature of the sale. The Bench emphasised that taxation cannot be determined on artificial theories of ascertainment when the contractual framework, delivery mechanism, and statutory provisions clearly establish an inter-State sale protected under the CST regime.

The Bench observed that the constitutional history surrounding Article 286 and the enactment of the CST Act clearly demonstrate the framer’s intention to prevent multiple taxation and barriers to free trade among States. Referring to the seven-Judge Bench decision in Bengal Immunity Co. Ltd. v. State of Bihar, the Court reiterated that States are constitutionally prohibited from imposing taxes on transactions occurring in the course of inter-State trade except to the extent permitted by Parliament. The Court stressed that allowing States to independently reinterpret inter-State transactions as intra-State sales would defeat the constitutional design intended to preserve economic unity across India. The Bench therefore reaffirmed that constitutional restrictions on State taxation must receive strict judicial enforcement to maintain the balance of fiscal federalism.

The decision of the Court:

The Apex Court dismissed the appeals filed by the State of Uttar Pradesh and affirmed the Allahabad High Court judgment quashing the VAT assessment orders against Reliance Industries and the purchaser entities. The Court held that the transactions in question constituted inter-State sales under Section 3(a) of the Central Sales Tax Act, 1956, since the movement of natural gas from Andhra Pradesh to Uttar Pradesh was directly occasioned by pre-existing contracts of sale. The Court reiterated that State legislatures cannot impose VAT on transactions falling within Parliament’s exclusive constitutional domain relating to inter-State trade and commerce.  

Case Title: State of Uttar Pradesh & Ors. Vs. Reliance Industries Limited & Ors.

Case No.: Civil Appeal No. 3910 of 2016

Coram: Hon’ble Mr. Justice J.K. Maheshwari, Hon’ble Mr. Justice Atul S. Chandurkar

Advocate for the Petitioner: Sr. Adv. Dinesh Dwivedi, AOR Bhakti Vardhan Singh, Adv. Vikas Singh Jangra, Adv. Nishant Singh, Adv. Narendra Pandey, Adv. Sauvik Singh, Adv. J Tarun Kumar, Adv. Ankit Khatri

Advocate for the Respondent: Sr. Adv. Kavin Gulati, Sr. Adv. Abhishek Manu Singhvi, AOR Naveen Kumar, AOR N. Visakamurthy, AOR Devina Sehgal, AOR Mr. Sahil Bhalaik, AOR Nidhi Mohan Parashar, AOR K.R. Sasiprabhu, Adv. Shubhranshu Padhi, Adv. Ashwin M. Dave, Adv. Ketan Dave, Adv. Rishit Badiani, Adv. Avishkar Singhvi, Adv. Vishnu Sharma A.S., Adv. Nidhiram Sharma, Adv. Pranav Giri, Adv. Yashrath Misra, adv. Tushar Bhardwaj and Ors.

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