Supreme Court Holds BOCW Act and Cess Act Operative Only Upon Effective Implementation, Qualifying as Subsequent Legislation Under Contract Clauses

Case Name: Prakash Atlanta (JV) v. National Highways Authority of India & Connected Appeals

Citation: 2026 INSC 76

Date of Judgment/Order: 20 January 2026

Bench: Hon’ble Mr. Justice Sanjay Kumar, Alok Aradhe

Held: The Supreme Court held that although the Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 and the Building and Other Construction Workers’ Welfare Cess Act, 1996 were notified earlier, they became effectively operative for contractual purposes only upon constitution of Welfare Boards and establishment of statutory machinery for levy, collection, and utilization of cess; therefore, in contracts containing a “subsequent legislation” clause, the implementation of the BOCW regime in the concerned State after the bid reference date qualified as subsequent legislation entitling contractors to reimbursement, and arbitral awards granting such relief did not warrant interference under Sections 34 or 37 of the Arbitration and Conciliation Act, 1996.

Summary: The appeals arose out of arbitral awards concerning contracts executed between NHAI and various contractors, including Prakash Atlanta (JV), relating to highway construction projects across different States. The central dispute concerned whether levy of 1% cess under the BOCW Act and the Cess Act constituted a liability already embedded in contractual pricing or amounted to “subsequent legislation” under contractual clauses such as Clause 70.8. Although the Acts were enacted in 1995–1996, the Court noted that effective implementation, including constitution of Welfare Boards and notification of Rules, occurred much later in several States and only after repeated monitoring by the Supreme Court in National Campaign Committee matters. Contractors argued that, at the bid submission stage, no operational machinery existed for levy and collection of cess and hence the financial burden could not have been factored into bid prices. Arbitral tribunals accepted this contention and held that State notifications operationalizing the Acts constituted subsequent legislation, directing reimbursement of cess deducted by NHAI. NHAI challenged these awards under Sections 34 and 37, contending that the Acts were in force from their notified dates and could not be treated as subsequent legislation. The Supreme Court examined the statutory scheme of the BOCW Act and the Cess Act in detail, the jurisprudence on judicial interference with arbitral awards, and contractual clauses governing price adjustment. It concluded that without constitution of Welfare Boards and operational machinery, levy and collection of cess could not logically arise and effective implementation in different States occurred on different dates. The arbitral interpretation treating such implementation as subsequent legislation was held to be a plausible and legally sustainable view not amenable to interference.

Decision: The Supreme Court dismissed the appeals filed by NHAI challenging the arbitral awards and upheld the findings that implementation of the BOCW Act and Cess Act in the respective States constituted subsequent legislation under the contractual clauses, while dealing separately with the appeal of Prakash Atlanta (JV) based on its distinct contractual framework; the Court affirmed the limited scope of interference under Sections 34 and 37 of the Arbitration and Conciliation Act, 1996, and sustained the awards granting reimbursement of cess where applicable, thereby disposing of all connected appeals accordingly.