Tata Motors disqualified from BEST bus tender, then loses challenge to rival's win

Tata Motors bid for 1400 electric buses. But they described the range under test conditions, not real roads. BEST said: out. The company then spent months in court trying to undo a rival's win — only for the Supreme Court to deliver a sharp lesson on who gets to complain about a tender they were rightly thrown out of.

The case began with a simple question. Could a bus run 200 kilometres on a single charge in Mumbai's actual traffic, heat, and road conditions? BEST, the public transport body of Mumbai, wanted an honest answer. What it got was a legal fight that went all the way to the Supreme Court.

When the bid said "test conditions" instead of "actual conditions"

In February 2022, BEST floated a tender for 1400 electric buses on a wet lease model for 12 years — meaning the contractor would supply, operate, and maintain the buses. The key requirement: each bus must have an operating range of 200 km on a single charge at 80% state of charge, measured in actual conditions.

Tata Motors submitted its bid. But instead of specifying the range under actual road conditions, the company described it under "standard test conditions as per AIS 040" — a laboratory-style test that does not account for real-world variables like traffic, air conditioning, or gradients. BEST found this deviation fatal. It declared Tata Motors technically non-responsive (meaning the bid did not meet the basic eligibility criteria) and disqualified it from the process.

EVEY Trans, another bidder, submitted a compliant bid. It did not deviate from the actual-conditions requirement. However, it made a different kind of mistake: it attached an annexure — Annexure Y — that contained a clerical error. The annexure referenced specifications from an older tender instead of the current one. EVEY noticed the error and submitted a corrected version two days after the technical bids were opened.

BEST evaluated all bids, found EVEY to be the lowest bidder (L1), and awarded it the contract on May 20, 2022.

The High Court's split decision

Tata Motors challenged both its own disqualification and EVEY's selection before the Bombay High Court. The High Court upheld Tata Motors' disqualification — agreeing that the deviation on range specification was fatal. But it also set aside BEST's acceptance of EVEY's bid, reasoning that the process around the corrected Annexure Y was unfair and that BEST should perhaps float a fresh tender.

This created an unusual situation: the party that had been rightly disqualified had succeeded in blocking the contract, while the compliant bidder and the public authority both found themselves on the losing side. All three parties — Tata Motors, EVEY, and BEST — appealed to the Supreme Court.

Why the Supreme Court said Tata Motors had no standing

The Supreme Court bench of Chief Justice D.Y. Chandrachud, Justice Pamidighantam Sri Narasimha, and Justice J.B. Pardiwala took up the appeals in May 2023. The courtroom fell into a thick silence as the Chief Justice began reading the order — the only sound the rustle of paper and the soft hum of the air conditioning. The court's first observation cut to the heart of the matter: a party that has been rightly found technically non-responsive in a tender process lacks standing (the legal right to bring a case) to challenge the decision of the tender-issuing authority to accept another bidder's bid.

In plain terms: if you were correctly kicked out of the race, you cannot complain about who won. The court held that granting judicial relief at the instance of such a party is misplaced. Tata Motors had no business questioning EVEY's selection because Tata Motors itself was not a valid participant in the tender process.

The court then turned to the High Court's interference with EVEY's bid. It found that the High Court had erred on two counts.

The clerical error that was not a fatal flaw

First, the court examined Annexure Y. The tender documents required certain documents to be submitted as part of the technical bid — these could not be revised after the technical bids were opened. But Annexure Y was different: it was a document required only from the successful bidder, after evaluation. The restriction on revision did not apply to it. EVEY's correction of a clerical error in a post-evaluation document was therefore permissible and did not violate any tender condition. The moment when EVEY's lawyer handed over the corrected annexure to the court — a single sheet of paper, neatly stapled, bearing the correction in a different pen — underscored how minor the mistake had been.

Second, the court reiterated a well-established principle: courts should not ordinarily interfere in tender or contract matters unless a clear-cut case of arbitrariness, mala fides (bad faith), bias, or irrationality is made out. In contracts involving technical issues, even greater restraint is required because judges lack the necessary expertise to evaluate technical specifications.

When courts should stay out of tenders

The Supreme Court cited its own precedents, including Silppi Constructions Contractors v. Union of India and Raunaq International Ltd. v. I.V.R. Construction Ltd., to underscore that judicial interference with commercial tender decisions that cause loss to the public exchequer is unwarranted. The court noted that when a contract is already underway, courts must consider the financial burden on the public exchequer that would result from directing a fresh tender. Such financial implications should be a guiding factor against judicial interference.

In this case, BEST had already awarded the contract to EVEY and the work was in progress. Ordering a fresh tender would have delayed the deployment of electric buses in Mumbai and increased costs for the public transport body — costs ultimately borne by taxpayers and commuters.

The court's reasoning was blunt. As it held: "A party that has been rightly found technically non-responsive in a tender process and stands disqualified lacks standing to challenge the decision of the tender-issuing authority to accept another bidder's bid. Grant of judicial relief at the instance of such a party is misplaced." This single sentence dismantled Tata Motors' entire case. The company had spent months arguing about the fairness of EVEY's selection, but the court said it had no right even to ask the question.

The precedents that shaped the judgment

The judgment drew on a line of Supreme Court decisions that together form the bedrock of Indian tender law. In Silppi Constructions Contractors v. Union of India, the court had held that judicial interference in commercial contracts should be minimal unless there is a clear violation of law or procedure. In Raunaq International Ltd. v. I.V.R. Construction Ltd., the court had warned against courts becoming appellate forums for every tender dispute. Association of Registration Plates v. Union of India reinforced the principle that the tendering authority is the best judge of its own requirements. Air India Ltd. v. Cochin International Airport Ltd. added that courts should not substitute their own judgment for that of the expert body. Jagdish Mandal v. State of Orissa made clear that interference is warranted only if the decision is arbitrary or mala fide. W.B. State Electricity Board v. Patel Engineering Co. Ltd. emphasised that the court's role is to review the decision-making process, not the decision itself. N.G. Projects Limited v. Vinod Kumar Jain and Kanhaiya Lal Agrawal v. Union of India further cemented the doctrine of restraint in tender matters.

Together, these precedents created a wall that Tata Motors could not breach. The company had been disqualified for a clear deviation — it had described the range under test conditions, not actual conditions — and the court found no arbitrariness or mala fides in BEST's decision. That was the end of the matter.

What this means for every bidder and every public authority

For bidders, the message is clear: read the tender conditions carefully and respond to them as they are written. A deviation — even one that seems minor, like describing range under test conditions instead of actual conditions — can disqualify you. And once disqualified, you cannot use the courts to block your rival's contract.

For public authorities, the judgment affirms that their technical evaluations will be respected by courts as long as they are not arbitrary or biased. They need not fear that every disqualified bidder's challenge will derail the process.

For courts, the message is one of restraint: in commercial tenders involving technical expertise, the court's role is limited to checking for fairness and legality — not to second-guessing technical decisions or rewriting tender processes.

THE PLAY: If your bid is technically non-responsive, you lose the right to challenge the winner — so check every specification against actual conditions, not laboratory standards, before you submit.

The buses were meant for Mumbai's roads, not a test lab. The Supreme Court made sure they stayed on the right track.