Hindustan Zinc Ltd vs Friends Coal Carbonisation

The Supreme Court addressed a dispute regarding a contract for the supply of Metallurgical coke, emphasizing the interpretation of price variation clauses under the contract. The Court held that the appellant was obligated to adjust the price based on the higher quality coal used by the respondent, as specified in Clause 5(i) of the purchase order. The judgment clarified that the appellant's refusal to grant escalations based on the use of Washery Grade I coal was unjustified, leading to a ruling in favor of the respondent for the claimed amount.