National Highways Authority of India v. M/S ITD Cementation India Ltd.
Background
NHAI had awarded several highway construction contracts, including to ITD Cementation, using a standard contract form that separately provided for (a) routine price adjustment for cost fluctuations based on a Wholesale Price Index formula, and (b) full reimbursement if "subsequent legislation" increased the contractor's costs. When Tamil Nadu and other states raised royalty ("seigniorage fee") rates on minor minerals like sand, earth and stone used in construction, several contractors claimed this extra cost was a "subsequent legislation" cost to be reimbursed in full, while NHAI argued it was already covered by the general price-adjustment formula and could not be claimed twice. Arbitral tribunals in multiple separate disputes had ruled in the contractors' favour, and High Courts had largely upheld those awards, leading to this batch of appeals before the Supreme Court.
Decision Breakdown
In the lead case (Civil Appeal No. 9799/2010), the Court held that construing contract terms is primarily the arbitrator's job, and courts will not second-guess a "possible view" taken by an arbitral tribunal unless it is one no reasonable person could reach. Since the royalty increase on minor minerals was not actually part of the Wholesale Price Index basket used for the general price-adjustment formula, the Tribunal's view that this fell instead under the separate "subsequent legislation" clause (to be compensated in full) was a plausible interpretation, and the Court declined to interfere, dismissing NHAI's appeal and the ten identically-worded connected appeals on the same reasoning. Two separately-structured companion matters were addressed on their own facts: Civil Appeal No. 7373/2012 was similarly dismissed because a royalty increase was a foreseeable "future event" under that contract's different clause structure, but Civil Appeal No. 6158/2013 was allowed and the arbitral award partly set aside, because the tribunal there had wrongly held that an earlier-existing royalty levy was invalid and that a later notification (which actually just maintained the same rate) created a fresh "subsequent legislation" liability: a conclusion the Court found went beyond the tribunal's jurisdiction.
Lesson Learnt
Courts give wide deference to how arbitrators interpret contract clauses, overturning an award only if the interpretation is one no fair-minded person could reach, but an arbitrator still cannot stretch a contract clause (here, "subsequent legislation") to cover a cost that in fact arose from a pre-existing, unchanged levy.