Exclusion Clause Cannot Defeat Insurance Claim When Explosion Is Not Denied and Defects Surface Only Post-Incident: Supreme Court Restores Compensation Claim for Boiler Blast

“Where explosion is not denied and defects are discovered only after the explosion, the exclusion clause cannot be pressed into service to repudiate the insurance claim” – On 13 November 2025, the Supreme Court of India delivered a significant ruling on the interpretation of insurance exclusion clauses and the duties of insurers under contracts governed by utmost good faith. The Court set aside the order of the National Consumer Disputes Redressal Commission (NCDRC) that had rejected an insurance claim related to a boiler explosion, and restored the matter for determination of quantum, firmly holding that Exclusion Clause 5 of the Boiler and Pressure Plant (BPP) Insurance Policy was wrongly applied.

The case dealt with critical legal issues under the Indian Boilers Act, 1923, Indian Contract Act, 1872, and the Consumer Protection Act, 1986, particularly focusing on repudiation of insurance claims, burden of proof on insurers, and interpretation of exclusion clauses when damage follows an explosion in a certified boiler.

Explosion Deemed Established; Repudiation of Claim Based on “Corrosion” Rejected

The Court’s primary observation was unequivocal: "There is no serious challenge to the factum of an explosion in the boiler resulting in damage including tubes slipping off." Despite the insurer’s attempts to attribute the damage to corrosion and wear-and-tear, the Court highlighted that the insurer did not dispute the explosion in its pleadings or survey reports and held that Exclusion Clause 5 could not apply, as the defects were not proven to be pre-existing and emerged only after the explosion.

The bench comprising Justice Manoj Misra and Justice Pamidighantam Sri Narasimha restored the original compensation claim and observed that:

"In absence of a stand that the boiler and its parts had a prescribed life and that the boiler had outlived its prescribed life, or that there was a failure on part of the insured in making full and complete disclosure, making the contract voidable, exclusion clause 5 could not have been pressed into service to repudiate the claim of the insured."

Certified Boiler Explosion Followed by Claim Denial

In this case, the appellant had obtained a Boiler and Pressure Plant Insurance Policy covering Boiler No. GT-23 for ₹1.6 crores. The boiler exploded on 12 May 2005, while holding a valid fitness certificate issued on 17 November 2004 under the Boilers Act, 1923.

Despite the boiler being certified and operational, National Insurance Co. Ltd. repudiated the claim on 22 June 2005, citing Exclusion Clause 5, which excludes claims arising from corrosion, deterioration, or bulging due to wear and tear “unless such defect results in explosion or collapse.”

The State Consumer Disputes Redressal Commission (Maharashtra) had initially allowed the claim partly, awarding ₹49 lakhs with interest, holding the insurer liable for deficiency of service. However, in appeal, the NCDRC reversed the decision, entirely dismissing the claim on the ground that the damage was caused due to tube slippage from aged and corroded parts, not explosion.

Boiler Fitness Certificate Carries Legal Presumption of Safety

The Court placed substantial reliance on the Boiler's registration and valid certificate under the Boilers Act, stating that once a boiler is registered and certified for use by statutory authorities, there is a presumption of its operational safety and fitness.

"In such circumstances, to substantiate that the insured suppressed information of boiler being unworthy of use, burden would be very heavy on the insurer, particularly, when the accident occurs during currency of its registration."

The Court emphasized that no evidence was produced by the insurer to displace this presumption, nor was any fraudulent suppression alleged or proven.

Exclusion Clause Must Be Construed to Uphold the Main Purpose of Insurance

Addressing Exclusion Clause 5, the Court held that the clause should be read down and interpreted narrowly to avoid defeating the very object of the insurance policy, which is to indemnify the insured against unforeseen accidents like explosions.

"Exclusion clause 5 indicates that if defects appear because of explosion in the boiler, it may not exclude a claim. A defect may not be visible unless the boiler is dismantled... it would be extremely unjust to non-suit a claim on discovery of defects post the blast in absence of any specific material that such defects cannot be an outcome of the blast or explosion."

The Court decisively concluded that the insurer could not escape liability merely on belated discovery of defects, especially when:

• The boiler had been duly certified
• The insurance policy was issued post certification
• There was no specific denial of the explosion
• No prior inspection report or request for further details was made
• The survey report was ambivalent and belatedly produced

Survey Reports Must Be Timely and Conclusive

The Court took a firm view against the belated production of survey reports by the insurer, observing that placing the report after more than a decade, during the NCDRC proceedings, undermines its probative value.

"The survey reports are not categoric regarding noticeable defects being present in the boiler in question from before as could enable repudiation of a claim... Discovery of corrosion cannot be conclusive where it comes to light only after the accident."

This reinforced the established principle that expert reports must be produced at the earliest opportunity, and in the absence of such timely disclosure, adverse inference may be drawn against the insurer.

No Failure of Disclosure by Insured – No Evidence of Fraud or Misrepresentation

Crucially, the Supreme Court found no breach of the insured’s duty of disclosure, reaffirming that the contract of insurance is governed by the principle of utmost good faith, and insurers bear the burden to prove suppression or misrepresentation.

"Here, there is nothing on record to indicate that insurer was deprived or denied an opportunity to inspect the boilers to enable it to take a decision whether it was worthy to take the risk... the insurer cannot be permitted to wriggle out of its liability."

Further, the Court cited Section 19 of the Indian Contract Act, 1872, observing that if the insurer failed to discover the age of parts or potential defects with ordinary diligence, it cannot later claim concealment.

Discretion to Entertain Appeal under Article 136 of Constitution

The insurer had also argued that the appeal before the Supreme Court should not be entertained since an alternative remedy via writ petition was available before the High Court. However, the Court declined this objection:

"Where parties have fully pleaded and the matter is ripe, relegating the appellant to the High Court would only delay justice."

Thus, the Court exercised its special leave jurisdiction under Article 136, reinforcing that consumer matters involving legal principles of wide applicability deserve final resolution.

NCDRC Order Set Aside; Claim Restored for Quantum Determination

Summarising its decision, the Court allowed the appeals and restored the appellant's claim before the NCDRC for the limited purpose of determining the quantum of compensation, holding that:

"We are of the view that NCDRC was not justified in setting aside the order of the State Commission and discarding the claim of the appellant by relying on exclusion clause 5."

All other legal issues were considered closed, and the parties were directed to bear their own costs.

The Supreme Court’s decision in this case reaffirms important consumer and insurance law principles: insurers cannot evade liability based on vague exclusion clauses, especially where damage arises from accidents like explosions in certified and insured machinery. The ruling offers strong protection to policyholders and holds insurers to high standards of transparency, diligence, and accountability.

Date of Decision: 13 November 2025