PSA Sical Terminals Pvt. Ltd. Vs Board of Trustees of V.O. Chidambaranar Port Trust & Ors. (Supreme Court of India)
Summary: The Supreme Court of India, in PSA Sical Terminals Pvt. Ltd. Vs Board of Trustees of V.O. Chidambaranar Port Trust & Ors., Civil Appeal Nos. 3699–3700 of 2018, decided on 28 July 2021 by a Bench comprising Justice R.F. Nariman and Justice B.R. Gavai, delivered an important judgment concerning the limits of an arbitrator’s authority to modify contractual obligations and the circumstances in which an arbitral award can be set aside for patent illegality. The principal issue was whether an Arbitral Tribunal could replace a royalty-based payment arrangement under a long-term infrastructure concession agreement with a revenue-sharing mechanism on the ground that subsequent changes in government policy had adversely affected the commercial viability of the project. The Supreme Court examined the contractual provisions, bidding documents, tariff regulations, government policy directions, earlier judicial proceedings and the principles governing interference with arbitral awards under Sections 34 and 37 of the Arbitration and Conciliation Act, 1996. It ultimately held that although arbitrators enjoy considerable autonomy in interpreting contractual provisions, they cannot rewrite the agreement or impose an entirely new commercial bargain upon a party that has not consented to such alteration. The Court upheld the Madras High Court’s decision setting aside the arbitral award because the Tribunal had exceeded its contractual jurisdiction by substituting a revenue-sharing model for the agreed royalty mechanism.
The dispute originated from a global tender issued by the Tuticorin Port Trust on 9 April 1997 for developing the Seventh Berth at V.O. Chidambaranar Port as a container terminal and operating and maintaining it for 30 years under the Build, Operate and Transfer (BOT) model. PSA Sical Terminals Pvt. Ltd. submitted its bid on 24 October 1997 and its financial offer on 19 December 1997. Since its offer was the highest, the Port Trust accepted the bid and issued a Letter of Intent on 29 January 1998. The parties subsequently executed a licence agreement on 15 July 1998. The bidding documents expressly required participating bidders to quote royalty payable per Twenty-foot Equivalent Unit (TEU), along with guaranteed traffic volumes and the corresponding royalty payments over the concession period. The bids were to be evaluated by reference to the present value of expected payments to the Port Trust, discounted at 16% annually. The contractual framework therefore treated royalty as an essential financial consideration forming the basis of the competitive bidding process. The licence agreement also provided that the terminal operator could recover charges from users, subject to maximum tariffs fixed by the competent governmental or regulatory authority. Consequently, the operator’s obligation to pay royalty and its entitlement to collect regulated tariffs were governed by distinct contractual and regulatory arrangements.
Following execution of the licence agreement, disputes arose regarding the treatment of royalty while determining the tariffs recoverable by the terminal operator. The Tariff Authority for Major Ports (TAMP), constituted under the Major Port Trusts Act, 1963, had adopted tariff guidelines in February 1998. SICAL submitted its initial tariff proposal in September 1999 and a revised proposal on 8 October 1999, including royalty as an element of cost. TAMP approved the proposal through its order dated 8 December 1999, which was notified on 28 December 1999. Subsequently, SICAL submitted another proposal on 8 February 2002 seeking tariff revision by factoring in increased royalty payments. The Port Trust opposed this proposal, and TAMP rejected the requested increase through its order dated 20 September 2002. SICAL challenged the decision before the Madras High Court, which granted interim relief on 8 November 2002 permitting it to continue charging tariffs at the rates prevailing before the disputed tariff order. This interim protection became significant because SICAL continued to recover charges under the 1999 tariff framework while disputes concerning subsequent tariff revisions remained unresolved.
The regulatory position underwent further changes when the Ministry of Shipping issued a notification dated 29 July 2003 clarifying that royalty payments and revenue-sharing obligations should not be treated as cost elements for tariff fixation or revision. Revised guidelines issued on 31 March 2005 continued the general restriction but provided limited relief for BOT projects where bidding had been finalised before 29 July 2003. Under these guidelines, royalty or revenue sharing could be considered for tariff purposes to avoid likely losses to the operator, subject to specified limitations, including a ceiling linked to the amount quoted by the next lowest bidder. The guidelines also contained restrictions concerning agreements that specifically addressed the treatment of royalty. SICAL maintained that these regulatory developments substantially altered the commercial assumptions underlying its concession agreement. According to the company, the original tariff framework contemplated recovery of royalty as part of the tariff structure, whereas subsequent government directions restricted that recovery without correspondingly reducing its contractual royalty obligations. It argued that the changes created an increasingly unsustainable financial position, particularly because the royalty payable to the Port Trust was subject to escalation while the tariffs recoverable from customers remained regulated.
Several rounds of administrative representations and judicial proceedings followed. On 17 August 2005, SICAL, the Government of India and TAMP entered into a Memorandum of Compromise in the pending writ proceedings. The arrangement contemplated consideration of SICAL’s request regarding royalty treatment and permitted continuation of the 1999 tariff until a revised tariff was notified, subject to adjustment of benefits obtained under the interim arrangement. The Government issued a directive on 17 April 2006 rejecting SICAL’s request for treating part of the royalty as a pass-through cost, while TAMP subsequently rejected another tariff revision proposal. SICAL challenged these decisions and also requested the Port Trust to amend the licence agreement under Article 14.3. The Madras High Court, by orders dated 21 and 22 August 2007, directed reconsideration of the relevant representations and tariff decisions after granting an appropriate hearing. Further government directions and tariff orders followed in 2008, but the disputes remained unresolved. On 15 October 2009, the High Court again set aside the relevant government direction and tariff order and directed fresh consideration. Appeals against these decisions remained pending. Meanwhile, SICAL repeatedly requested conversion of the royalty arrangement into a revenue-sharing model, contending that the regulatory changes had fundamentally disturbed the economic balance of the concession.
The contractual dispute eventually resulted in arbitration. SICAL relied principally on Article 14 of the licence agreement, which addressed changes in law occurring after execution of the agreement and substantially and adversely affecting the licensee’s rights so as to alter the project’s commercial viability. The provision contemplated a written request for amendment of the agreement in such circumstances. SICAL argued that the expression ‘law’ was broadly defined to include statutes, regulations, notifications, government directions, administrative guidelines and other instruments having the force of law. It maintained that the government directions and tariff guidelines restricting royalty recovery therefore qualified as changes in law. According to SICAL, Article 14 had been incorporated specifically to protect the commercial viability of a long-term infrastructure project against adverse regulatory developments. The company submitted that the contractual restriction on claiming compensation for changes in law reinforced its position that the intended remedy was amendment of the agreement rather than monetary damages. It therefore argued that the Port Trust was obliged to restore the commercial equilibrium of the project by accepting suitable contractual modifications.
SICAL further contended that the royalty arrangement had become commercially unworkable because escalating royalty payments were approaching or exceeding the regulated tariffs recoverable for handling containers. It asserted that the continuation of the existing arrangement would cause substantial financial losses and jeopardise the operation of the container terminal. SICAL also referred to the treatment of other port concessionaires, particularly Nhava Sheva Container Terminal Limited, to support its allegation that the regulatory authorities had adopted inconsistent approaches towards royalty recovery. It maintained that subsequent port concession projects generally followed revenue-sharing arrangements rather than the royalty structure adopted in the earlier BOT projects. SICAL therefore argued that converting the agreement into a revenue-sharing model was commercially reasonable and consistent with the broader evolution of port concession policy. The company also relied on principles of contractual interpretation and business efficacy, submitting that long-term commercial agreements should be interpreted in a manner that preserves their practical operation. In its view, the Arbitral Tribunal had merely implemented the contractual change-in-law mechanism rather than creating an entirely new agreement.
The Arbitral Tribunal accepted SICAL’s case and passed an award on 14 February 2014 directing conversion of the container terminal’s payment mechanism from the royalty model to a revenue-sharing model. The Tribunal considered that the subsequent regulatory developments constituted a change in law affecting the commercial viability of the project and that SICAL was entitled to relief under the agreement. The Port Trust challenged the award under Section 34 of the Arbitration and Conciliation Act, 1996. Following proceedings concerning territorial jurisdiction, the challenge was placed before the District Judge, Tuticorin, who dismissed it on 25 February 2016. The Port Trust then preferred an appeal under Section 37 before the Madras High Court. By its judgment dated 1 November 2017, the High Court allowed the appeal and set aside both the arbitral award and the District Judge’s order. The High Court concluded that the Tribunal had travelled beyond the contractual framework by replacing the financial arrangement agreed upon by the parties. SICAL challenged the High Court’s decision before the Supreme Court, arguing that the High Court had exceeded the narrow limits of appellate interference with arbitral awards.
Before the Supreme Court, SICAL submitted that the Arbitral Tribunal’s interpretation of Article 14 was at least a possible and reasonable interpretation of the licence agreement. It argued that the Tribunal had carefully examined the contractual provisions, regulatory developments and conduct of the parties before concluding that a change in law had occurred. Relying on MMTC Limited Vs Vedanta Limited, (2019) 4 SCC 163, Associate Builders Vs Delhi Development Authority, (2015) 3 SCC 49, and Ssangyong Engineering and Construction Company Limited Vs National Highways Authority of India, (2019) 15 SCC 131, SICAL emphasised that courts exercising jurisdiction under Sections 34 and 37 cannot function as appellate forums reconsidering the merits of an arbitral dispute. It maintained that where an arbitrator adopts a plausible contractual interpretation, judicial interference is impermissible merely because the reviewing court prefers another interpretation. SICAL also relied on the UNIDROIT Principles of International Commercial Contracts and decisions concerning contractual interpretation to contend that agreements should be construed according to the common intention of the parties. It submitted that Article 14 was intended to restore commercial equilibrium when government action materially affected the project and that the Tribunal’s decision should therefore have been respected.
The Port Trust strongly opposed these submissions. It pointed out that SICAL had submitted its financial offer in December 1997, before the February 1998 tariff guidelines came into existence, and therefore could not claim that its original royalty bid was based on those subsequent guidelines. The Port Trust argued that the bidding documents and licence agreement clearly established a royalty-based concession and that the royalty obligations had been accepted voluntarily through a competitive tender. It also contended that SICAL had taken inconsistent positions in different proceedings regarding whether the tariff guidelines possessed the force of law. According to the Port Trust, SICAL had already pursued writ remedies concerning tariff fixation and government directions and was attempting to obtain overlapping relief through arbitration. More importantly, it argued that the Tribunal had no authority to substitute the royalty model with revenue sharing because such substitution altered the essential financial bargain between the parties. A change-in-law provision permitting a request for amendment could not be interpreted as authorising an arbitrator to compel the licensor to accept an entirely different payment arrangement. The Port Trust maintained that no contracting party could be forced to perform obligations that it had never agreed to undertake.
The Supreme Court first considered the established principles governing judicial review of arbitral awards. Referring to MMTC Limited Vs Vedanta Limited and Ssangyong Engineering and Construction Company Limited Vs National Highways Authority of India, the Court reiterated that proceedings under Section 34 are not appeals on the merits of an arbitral award. A court cannot ordinarily reappreciate evidence, independently reconsider factual findings or interfere merely because another interpretation of the agreement appears preferable. The grounds for setting aside an award are confined to those recognised by the Arbitration and Conciliation Act, including specified violations of public policy and, where applicable, patent illegality appearing on the face of the award. The Court explained that the statutory framework distinguishes between an erroneous decision made within the arbitrator’s jurisdiction and an award that exceeds the jurisdiction conferred by the agreement. While an arbitrator’s reasonable interpretation of contractual provisions ordinarily deserves judicial deference, an award cannot be sustained where the arbitrator disregards the contractual framework or imposes obligations that the parties never accepted. The Court also reiterated that the scope of interference under Section 37 cannot exceed the limitations governing proceedings under Section 34.
The Supreme Court then examined the bidding documents and contractual provisions to determine the nature of the commercial arrangement voluntarily accepted by SICAL. The Court considered the financial offer requirements, the royalty payment structure, the provisions governing tariff recovery and the contractual obligations of the licensee. The bidding documents required bidders to specify guaranteed container traffic and royalty payable per TEU for the entire concession period. The ranking of financial bids depended upon the present value of royalty payments expected to be received by the Port Trust. These provisions demonstrated that royalty was not an incidental contractual feature but a central consideration determining the selection of the successful bidder. The licence agreement separately regulated the terminal operator’s entitlement to collect tariffs from users and subjected such tariffs to the rates approved by the competent authority. The Supreme Court therefore considered it necessary to distinguish between the royalty obligation voluntarily undertaken by the operator and the regulatory process governing tariff fixation. The fact that tariff regulations might affect the operator’s profitability did not, by itself, authorise substitution of the contractual payment mechanism.
Particular attention was given to Article 14 of the licence agreement. The Supreme Court examined the change-in-law provision in the context of the agreement as a whole and considered whether it conferred an enforceable right to compel amendments. The Court recognised that the provision contemplated circumstances in which subsequent changes in law might substantially and adversely affect the licensee’s rights or commercial viability. However, the contractual language permitted the licensee to request amendments; it did not provide that every such request must be accepted by the licensor. Nor did it authorise an Arbitral Tribunal to determine and impose entirely new financial obligations irrespective of the licensor’s consent. The Court considered that an agreement to entertain or consider a request for modification was fundamentally different from an agreement permitting unilateral alteration of essential contractual terms. The absence of an express contractual power to compel the requested substitution was therefore decisive. The Tribunal could not treat the existence of a change-in-law clause as authority to reconstruct the commercial bargain between the parties.
The Court further examined the nature of the relief granted by the Arbitral Tribunal. Under the original agreement, SICAL was required to pay royalty calculated according to the contractual mechanism, while the Port Trust was entitled to receive those payments. The award replaced that arrangement with a revenue-sharing model, thereby altering the method by which the Port Trust would receive consideration for granting the concession. The Supreme Court held that this was not a minor adjustment or an interpretation of an ambiguous provision. It amounted to a fundamental alteration of the financial rights and obligations established through the tender and licence agreement. The Tribunal had effectively substituted its own assessment of an appropriate commercial arrangement for the bargain voluntarily accepted by the parties. The Court emphasised that an arbitrator’s task is to resolve disputes arising under the contract, not to design a different contract that the arbitrator considers more equitable or economically sustainable. Even where one party demonstrates serious commercial hardship, the arbitral process cannot be used to impose a new bargain upon the other contracting party without contractual authority.
The Supreme Court also examined the principles governing patent illegality and fundamental notions of justice. In Ssangyong Engineering and Construction Company Limited Vs National Highways Authority of India, the Supreme Court had considered the impermissibility of applying a unilateral contractual alteration without the consent of the affected party. The Court explained that a fundamental principle of contractual justice is that a party cannot be compelled to perform a bargain it never entered into. Although interference on the ground of conflict with the most basic notions of justice is available only in exceptional circumstances, an arbitral award that effectively creates a new contract by imposing unilateral alterations may fall within that category. Applying this principle, the Court found that the Tribunal’s substitution of the royalty model with revenue sharing imposed a substantially different financial arrangement upon the Port Trust. The award therefore went beyond a permissible exercise of contractual interpretation and entered the prohibited territory of rewriting the agreement. The Court considered this defect sufficiently fundamental to justify judicial interference notwithstanding the generally restrictive approach adopted under the arbitration legislation.
The Supreme Court reinforced its reasoning by referring to Bharat Coking Coal Ltd. Vs Annapurna Construction, (2003) 8 SCC 154, which distinguishes an error committed within jurisdiction from an error arising through excess of jurisdiction. The Court reiterated that an arbitrator derives authority exclusively from the contract and the reference made by the parties. Where the arbitrator remains within the contractual framework, an award cannot ordinarily be challenged merely because it contains an error of interpretation. However, where the arbitrator travels beyond the contract and decides matters or grants relief outside the authority conferred, the resulting award suffers from a jurisdictional defect. The Court also relied on Md. Army Welfare Housing Organization Vs Sumangal Services (P) Ltd., (2004) 9 SCC 619, which explains that an Arbitral Tribunal is not a court exercising general judicial powers and cannot grant relief solely on broad equitable considerations. Its jurisdiction remains confined to the four corners of the agreement and the matters referred to arbitration. These authorities supported the conclusion that the Tribunal could not compel conversion of the contractual royalty arrangement into revenue sharing in the absence of an express contractual foundation.
The Supreme Court rejected the proposition that the principle of minimal judicial interference required courts to uphold every award involving contractual interpretation. It explained that judicial deference applies where the arbitrator has adopted a possible interpretation of the agreement while remaining within the powers conferred by the parties. The position is different where the arbitrator creates obligations that cannot reasonably be derived from the contractual provisions. In such circumstances, the issue is not merely whether the arbitrator’s interpretation is correct or incorrect but whether the arbitrator possessed jurisdiction to grant the particular relief. The Court concluded that the award suffered from patent illegality because the Tribunal had exceeded its authority by replacing an essential component of the contract. The Madras High Court had therefore been justified in setting aside the award, and its intervention did not amount to an impermissible reconsideration of factual findings or a substitution of its preferred interpretation for a reasonable arbitral view.
The Supreme Court nevertheless refrained from deciding several other disputed questions raised by the parties. These included SICAL’s allegations of discriminatory treatment compared with other port operators, the applicability of the doctrines of approbate and reprobate and election, the financial losses allegedly suffered by SICAL and the Port Trust, and the legality of various government directions and tariff notifications. The Court observed that several proceedings concerning tariff fixation and regulatory directions remained pending before the Madras High Court. It also recorded that SICAL continued to levy charges under the 1999 tariff order pursuant to interim judicial protection granted in November 2002. The Court considered that expressing views on the merits of these controversies could prejudice the rights of the parties in the pending proceedings. It therefore deliberately confined its adjudication to the validity of the arbitral award. The Court clarified that observations made by the High Court on matters other than the award’s validity would not prevent either party from pursuing its grievances in pending appeals or other proceedings available under law.
In its final decision, the Supreme Court held that the Arbitral Tribunal had acted beyond its contractual jurisdiction by directing substitution of the royalty-based concession arrangement with a revenue-sharing mechanism. The Court concluded that the award amounted to an impermissible rewriting of the agreement and consequently suffered from patent illegality. It upheld the Madras High Court’s judgment setting aside the award and dismissed Civil Appeal Nos. 3699–3700 of 2018. Having regard to the circumstances, the Court made no order as to costs and directed disposal of pending applications. The judgment reinforces an important distinction in Indian arbitration law: courts must respect reasonable arbitral interpretations and avoid reviewing awards as appellate authorities, but they remain empowered to intervene where an arbitrator exceeds the authority granted by the parties. The decision has significant implications for infrastructure concessions, public-private partnerships, BOT agreements, tariff-regulated projects and other long-term commercial arrangements containing change-in-law or hardship provisions. Such clauses may provide mechanisms for requesting adjustments, but they do not automatically authorise an arbitrator to impose new contractual terms without the consent of the parties or a clear contractual power to do so.
Cases Discussed:
- Pure Helium India (P) Ltd. Vs Oil and Natural Gas Corporation Ltd. (Supreme Court); (2003) 8 SCC 593 — Cited by SICAL concerning interpretation of commercial contracts and contractual obligations.
- Bharat Coking Coal Ltd. Vs Annapurna Construction (Supreme Court); (2003) 8 SCC 154 — Relied upon to distinguish errors committed within arbitral jurisdiction from decisions exceeding the arbitrator’s contractual authority.
- Md. Army Welfare Housing Organization Vs Sumangal Services (P) Ltd. (Supreme Court); (2004) 9 SCC 619 — Applied for the principle that an arbitrator must act within the contractual framework and cannot grant relief beyond the agreement.
- Swamy Atmananda Vs Sri Ramakrishna Tapovanam (Supreme Court); (2005) 10 SCC 51 — Cited by SICAL concerning interpretation of contractual documents.
- Kwality Manufacturing Corporation Vs Central Warehousing Corporation (Supreme Court); (2009) 5 SCC 142 — Cited in support of the restricted scope of judicial interference with arbitral awards.
- Steel Authority of India Ltd. Vs Gupta Brother Steel Tubes Ltd. (Supreme Court); (2009) 10 SCC 63 — Cited concerning judicial restraint in reviewing an arbitrator’s interpretation of contractual provisions.
- Sumitomo Heavy Industries Ltd. Vs Oil and Natural Gas Corporation Ltd. (Supreme Court); (2010) 11 SCC 296 — Cited by SICAL regarding the arbitrator’s authority to interpret contractual terms.
- Rashtriya Chemicals and Fertilizers Ltd. Vs Chowgule Brothers (Supreme Court); (2010) 8 SCC 563 — Cited by the respondents concerning the contractual limits of arbitral authority.
- J.G. Engineers Pvt. Ltd. Vs Union of India (Supreme Court); (2011) 5 SCC 758 — Cited concerning the division of contractual responsibilities and the jurisdiction of arbitrators.
- Rashtriya Ispat Nigam Ltd. Vs Dewan Chand Ram Saran (Supreme Court); (2012) 5 SCC 306 — Cited regarding judicial deference to a reasonable interpretation adopted by an arbitral tribunal.
- Associate Builders Vs Delhi Development Authority (Supreme Court); (2015) 3 SCC 49 — Discussed extensively on public policy, perversity, patent illegality and the limited grounds for setting aside arbitral awards.
- All India Power Engineer Federation Vs Sasan Power Ltd. (Supreme Court); (2017) 1 SCC 487 — Cited by the respondents in support of their objections to the arbitral award.
- MMTC Ltd. Vs Vedanta Ltd. (Supreme Court); (2019) 4 SCC 163 — Relied upon to explain that Sections 34 and 37 do not permit appellate reconsideration of an arbitral award or reappreciation of evidence.
- State of Jharkhand Vs HSS Integrated SDN (Supreme Court); (2019) 9 SCC 798 — Cited by SICAL concerning the restricted jurisdiction of courts reviewing arbitral awards.
- Adani Power (Mundra) Ltd. Vs Gujarat Electricity Regulatory Commission (Supreme Court); (2019) 19 SCC 9 — Cited by SICAL regarding business efficacy and interpretation of long-term commercial contracts.
- Ssangyong Engineering and Construction Co. Ltd. Vs National Highways Authority of India (Supreme Court); (2019) 15 SCC 131 — Discussed extensively concerning patent illegality, public policy, contractual interpretation and impermissible unilateral modification of contractual obligations.
- South East Asia Marine Engineering and Constructions Ltd. Vs Oil India Ltd. (Supreme Court); (2020) 5 SCC 164 — Cited by the respondents concerning impermissible contractual interpretation and the limits of arbitral authority.






