Parties and procedural roles: The Union of India was the curative petitioner acting in its parens patriae capacity for Bhopal victims. Union Carbide Corporation and related entities were respondents resisting reopening of the 1989 settlement; survivors were the affected class although the Union framed the curative claim. In Indian Supreme Court terminology, these parties are therefore described as petitioner/appellant and respondent, accused/prosecution, or contemnor/Court as appropriate—not automatically as plaintiff and defendant.

Detailed factual and procedural background: The Union of India sought curative relief against Union Carbide Corporation and related entities, asking for more than the 1989 Bhopal settlement to address alleged underestimation of deaths, injuries and environmental consequences. Union Carbide resisted reopening a decades-old final settlement. Survivors’ interests formed the human context, although the curative claim was framed and controlled by the Union.

How the dispute reached the Court: The proceeding numbered CURATIVE PET(C) No. 345-347/2010 In R.P.(C) No. 229/1989 & 623-624/1989 In C.A. No. 3187-3188/1988 and SLP (C) No. 13080/1988 developed through the events recorded in the timeline: 1984: Bhopal gas disaster caused mass death and injury. 1989: Supreme Court-approved settlement fixed Union Carbide liability at US$470 million. 2010: Union filed curative petitions seeking additional compensation. 12 January 2023: judgment reserved; 14 March: petitions dismissed. The concrete problem was not merely academic; it required the Court to decide: Could the 1989 settlement be reopened through curative jurisdiction because harm was allegedly underestimated? Was fraud or a fundamental miscarriage of justice established?

The Union argued that later data showed the settlement was founded on incorrect assumptions and that parens patriae responsibility justified a top-up. The company relied on finality, the Union’s earlier undertakings and absence of fraud. The Court examined the narrow curative standard, insurance-like governmental responsibility and undistributed welfare funds.

Expanded comparison of the competing positions: The side seeking relief asked the Court to apply Finality of settlements; curative jurisdiction; parens patriae; mass-tort compensation; polluter pays to the actual institutional or individual harm shown by the record. The opposing side relied on statutory authority, procedural regularity, governmental necessity, finality or administrability, depending on the proceeding, and urged a narrower remedy. Both positions had to be tested against Bhopal Gas Leak Disaster (Processing of Claims) Act, 1985; Code of Civil Procedure, 1908; Supreme Court curative jurisdiction and Articles 21, 32, 136, 137 and 142.

What the Court had to evaluate: It examined the text and purpose of the governing provisions, binding precedent, the evidentiary or institutional record, and the practical consequences of accepting either interpretation. The decisive questions were: Could the 1989 settlement be reopened through curative jurisdiction because harm was allegedly underestimated? Was fraud or a fundamental miscarriage of justice established?

The Court unanimously dismissed the curative petitions. It found no fraud and held that the Union could not disown a settlement it had negotiated and accepted, especially after failing to provide the promised insurance mechanism. It protected finality while directing that available funds continue to benefit eligible claimants.

Reasoning and legal effect: The result followed from the Court’s application of Finality of settlements; curative jurisdiction; parens patriae; mass-tort compensation; polluter pays to Bhopal Gas Leak Disaster (Processing of Claims) Act, 1985; Code of Civil Procedure, 1908; Supreme Court curative jurisdiction read with Articles 21, 32, 136, 137 and 142. The Court distinguished the legal rule binding future courts from observations confined to the facts, and tailored the operative relief to the procedural posture of UNION OF INDIA vs M/S. UNION CARBIDE CORPORATION.

Practical consequence: The parties are bound by the operative directions in CURATIVE PET(C) No. 345-347/2010 In R.P.(C) No. 229/1989 & 623-624/1989 In C.A. No. 3187-3188/1988 and SLP (C) No. 13080/1988; lower courts, governments, regulators or investigating authorities must apply the stated ratio in materially similar cases. Any prospective limitation, remand, monitoring direction, bail condition, implementation safeguard or preservation of concluded matters mentioned above forms part of the scope of the ruling. The signed judgment remains controlling if a short summary and the operative paragraphs differ.

Bhopal Gas Leak Disaster (Processing of Claims) Act, 1985; Code of Civil Procedure, 1908; Supreme Court curative jurisdiction

Articles 21, 32, 136, 137 and 142

Finality of settlements; curative jurisdiction; parens patriae; mass-tort compensation; polluter pays