Judicial Restraint in QCBS Tenders: Courts Should Not Substitute the Owner’s Choice on Marginal Scoring Differences Absent Mala Fides/Arbitrariness

1. Introduction

STEAG ENERGY SERVICES (INDIA) PVT. LTD. v. GSPC PIPAVAV POWER COMPANY LTD. (GPPC) (2026 INSC 295, Supreme Court of India, 25-03-2026) concerns judicial review of a public tender awarded under a Quality and Cost Based System (QCBS) for operation and maintenance of GPPC’s 702.86 MW gas-based combined cycle power plant.

GPPC floated a tender (January 2025) for a 5-year O&M contract evaluated on 70% technical and 30% financial weightage. Three bidders qualified technically, including M/s STEAG Energy Services (India) Pvt. Ltd. (successful bidder) and O&M Solutions Pvt. Ltd. (the writ petitioner before the High Court).

The core dispute arose after the Gujarat High Court directed a re-evaluation of technical marks through GPPC’s consultant (Fichtner Consulting Engineers India Private Limited), resulting in a reduction of STEAG’s marks under one technical parameter, producing a technical tie and a marginal shift in final QCBS score based on price. The High Court then quashed GPPC’s LOA/contract in favour of STEAG and directed award to the writ petitioner. The Supreme Court was asked to decide whether such interference was justified.

Key Issues

  • Whether, in QCBS tenders, a writ court can quash an LOA/contract and direct award to another bidder merely because, after re-evaluation, the other bidder’s total QCBS score is marginally higher.
  • Whether the High Court exceeded the permissible limits of judicial review in tender/contract matters absent mala fides, arbitrariness, irrationality, or perversity.
  • How “owner’s discretion” and “fair/free play in the joints” operate when tender terms specify selection by highest combined score.

2. Summary of the Judgment

The Supreme Court allowed STEAG’s appeal (arising from Special Civil Application No. 7289 of 2025), set aside the Gujarat High Court’s order quashing the LOA/contract, and upheld GPPC’s LOA dated 09.06.2025 and the executed contract dated 01.07.2025 in favour of STEAG. It held that the High Court had exceeded the permissible bounds of judicial review by effectively substituting its own selection for that of the owner based on a minuscule score difference, despite no finding of arbitrariness, mala fides, or illegality.

Separately, the Court dismissed STEAG’s other appeal (arising from Special Civil Application No. 12328 of 2025) relating to a claim for marks under another technical parameter (sea water system experience), finding no reason to interfere with the High Court’s treatment of that issue.

Costs: No order as to costs.

3. Analysis

A. Precedents Cited

i. Afcons Infrastructure Ltd. v. Nagpur Metro Rail Corpn. Ltd.

The Court relied on Afcons Infrastructure Ltd. v. Nagpur Metro Rail Corpn. Ltd. (2016) 16 SCC 818 to reaffirm that tender decisions should not be interfered with unless the process is mala fide, intended to favour someone, or so arbitrary/irrational that no reasonable authority could have reached it—i.e., it must be perverse, not merely “faulty or incorrect or erroneous”.

This authority was used to reject the High Court’s approach of treating a tiny scoring delta as a sufficient basis to undo an awarded and executed contract, particularly when the High Court itself did not find arbitrariness or illegality in GPPC’s process.

ii. Central Coalfields Ltd. v. SLL-SML (Joint Venture Consortium)

Quoted through Afcons, Central Coalfields Ltd. v. SLL-SML (Joint Venture Consortium) (2016) 8 SCC 622 reinforced the narrow gate for judicial interference: the court’s role is supervisory over legality, not appellate over merits. In STEAG, the Supreme Court treated the High Court’s “winner selection” exercise as crossing from review into substitution.

iii. Montecarlo Ltd. v. NTPC Ltd.

Montecarlo Ltd. v. NTPC Ltd. (2016) 15 SCC 272 was deployed to emphasize: (a) modern tenders often involve complex technical assessments best left to experts/consultants; and (b) courts must apply a principle of restraint—technical comparison by courts is “impermissible” unless the process is arbitrary or mala fide.

The judgment echoes Montecarlo’s articulation of “free play in the joints”: owners must have operational flexibility to achieve the tender’s purpose (timely, workable, realistic outcomes), which should not be defeated by rigid judicial second-guessing.

iv. Tata Motors Ltd. v. Brihan Mumbai Electric Supply & Transport Undertaking (BEST)

From Tata Motors Ltd. v. Brihan Mumbai Electric Supply & Transport Undertaking (BEST) (2023) 19 SCC 1, the Court reiterated that courts should not use a “magnifying glass” to inflate small issues into decisive flaws and must preserve “fair play in the joints” in government contracting—especially where technical issues are involved.

In STEAG, this principle supported the Court’s view that a judicial remedy is not found in mathematical rigidity where bids are highly competitive and margins are naturally slim.

v. Silppi Constructions Contractors v. Union Of India

The Court referenced Silppi Constructions Contractors v. Union Of India (2020) 16 SCC 489 to highlight public interest considerations: courts should be slow to derail a tender once the contract is underway; delays harm public projects and may cause loss to the public exchequer.

This supported the Supreme Court’s criticism that the High Court (and the litigating bidders) lost sight of GPPC’s operational imperative: the existing O&M arrangement was ending in June 2025, and transition/mobilisation required timely certainty.

vi. Assn. of Registration Plates v. Union of India

Through Silppi, the Court also invoked Assn. of Registration Plates v. Union of India (2005) 1 SCC 679 to reiterate that even where some defect exists, writ discretion should be exercised with caution; intervention should be driven by overwhelming public interest, not merely the availability of a legal point.

B. Legal Reasoning

i. The Court’s core holding: review is not substitution

The Supreme Court’s decisive move was to reframe what the High Court did: it did not merely enforce a tender clause; it effectively re-awarded the contract by applying the QCBS formula itself and concluding that the writ petitioner must win because its total score was marginally higher after re-evaluation. The Supreme Court held this to be incompatible with the limited scope of judicial review in tender matters.

ii. “Highest score” clause does not convert courts into tender-evaluators

The tender stated: “The successful bidder will be the one who has highest score (S).” The Supreme Court accepted the clause’s existence but stressed an institutional point: the entity empowered to “consider” and apply this in context is the Owner (GPPC), not the court.

The Court anchored this in the broader idea that owners require “fair play in the joints” and operational flexibility. It also highlighted clause 23.1 reserving GPPC’s right to accept/reject any bid and cancel the process prior to award—illustrating that tendering is not a mechanical arithmetical exercise divorced from administrative judgment and public interest constraints.

iii. Marginal differences in competitive tenders: courts should avoid rigid mathematical finality

The High Court had found the difference “minuscule” (about 0.002). The Supreme Court accepted the practical point advanced for the writ petitioner: where tender conditions constrain price ranges, differences will naturally be small. But it rejected the idea that the judicial solution lies in “mathematical precision or application of rigid formulae”.

The Court instead advocated a nuanced judicial posture: ensure integrity and legality, but avoid binary judicial “winner selection” where no mala fides/arbitrariness is shown, especially after award and contract execution.

iv. Timing, mobilisation, and public interest: the “owner’s needs” are not peripheral

A notable feature of the judgment is its insistence that judicial review must remain alert to the owner’s operational needs and transition timelines. Here, STEAG had mobilised; the contract had been executed; and more than a year had passed in litigation-induced uncertainty. The Supreme Court treated these facts as reinforcing restraint, particularly absent any serious illegality.

v. Re-evaluation ordered by the High Court: cooperation by counsel is not a gateway to deeper intervention

The High Court’s re-evaluation direction led to a report that reduced STEAG’s marks from 10 to 8 under item 3 of clause 20.2(B), creating a technical tie. The Supreme Court observed that the High Court’s reliance on the fact that GPPC’s counsel had agreed to re-evaluation could not justify an “intense inquiry” beyond settled principles. Counsel cooperation is part of good practice; it does not lower the threshold for judicial interference.

vi. Limited interference maintained on the separate issue (sea water system marks)

The Supreme Court declined to disturb the High Court’s findings on STEAG’s claim for additional marks under clause 4 of 20.02(B), describing the High Court’s conclusion as factually correct and based on a reasonable interpretation. This illustrates the Court’s calibrated approach: it was not endorsing STEAG across the board, but correcting what it saw as an overreach in contract re-award.

C. Impact

  • QCBS disputes will be harder to convert into court-driven “winner determination”: Even where tender clauses prescribe selection by score, courts are cautioned against assuming the owner’s role—particularly where differences are minuscule.
  • Reinforced threshold for interference: Parties challenging tenders must demonstrate mala fides, intention to favour, arbitrariness/irrationality, or perversity; mere scoring disagreements or slender margins will not suffice.
  • Greater deference once award/execution/mobilisation occurs: The decision strengthens the line that undoing an underway contract is generally against public interest unless serious illegality is shown.
  • Owner-centric lens in judicial review: Courts are reminded to weigh the owner’s time sensitivity, transition needs, and operational continuity, not merely comparative bidder entitlements.
  • Practical signal to litigants: Where bidding is within tight financial bands and margins are predictably small, litigation strategies based solely on “score arithmetic” are unlikely to succeed absent demonstrable taint.

4. Complex Concepts Simplified

QCBS (Quality and Cost Based System)
A tender evaluation method combining technical quality and price. Here, technical marks carried 70% weight and financial score carried 30%. The final combined score (S) determined ranking.
Technical score (St) vs Financial score (Sf)
St comes from technical criteria. Sf is computed relative to the lowest price: the lowest bidder gets 100, others get proportionately less.
LOI / LOA
A Letter of Intent (LOI) indicates proposed award; a Letter of Acceptance/Award (LOA) confirms acceptance and triggers contractual steps.
Judicial review in tender matters
Courts check legality of the process (fairness, non-arbitrariness, absence of mala fides), but generally do not re-evaluate bids as if sitting in appeal over the tendering authority.
“Fair/free play in the joints”
A phrase used to describe necessary administrative flexibility in contractual decisions. It recognizes that tendering involves judgment calls (timelines, feasibility, transitions), and courts should not micromanage unless there is clear illegality.
Perversity
A decision so unreasonable that no responsible authority acting reasonably and in accordance with law could have made it—this is a higher threshold than mere error.
Public exchequer
Public money. Courts consider whether interventions (like re-tendering or reversing an underway contract) may cause substantial waste, delay, or financial loss.

5. Conclusion

This judgment reasserts a clear rule for QCBS and similar competitive public tenders: courts must not substitute the owner’s contracting decision merely because a rival bidder edges ahead by a minuscule scoring difference after re-evaluation, particularly once the LOA is issued and the contract is executed, unless the process is shown to be mala fide, arbitrary, irrational, or perverse.

By centering restraint, owner discretion, and public interest in continuity and timely execution, the Supreme Court strengthens predictability in public contracting and signals that tender litigation cannot be used to convert close scoring contests into court-administered bid awards.