Ssangyong Engineering and Construction Co. Ltd v. National Highways Authority of India(nhai)

Court

Supreme Court of India

Decided

8 May 2019

Case no.

C.A. No.-004779-004779 - 2019

Bench

Rohinton Fali Nariman, Vineet Saran

Author

Rohinton Fali Nariman

Facts

• The NHAI invited bids for constructing a four-lane bypass on National Highway 26 in Madhya Pradesh, and the appellant's bid was accepted on December 30, 2005, for a total contract value of INR 219,01,16,805.
• The contract included a price adjustment clause (sub-clause 70.3) for components such as cement, steel, and machinery, calculated based on the WPI.
• The base date for price adjustment was established as September 29, 2005, with the bid submission date being October 27, 2005.
• Price adjustments were initially calculated using the Old Series WPI until the Ministry of Industrial Development switched to the New Series WPI on September 14, 2010.
• Payments were made based on the New Series WPI from September 2010 to February 2013, until a policy circular issued on February 15, 2013, introduced a new formula requiring a linking factor based on the year 2009-10.

Arguments

Petitioner Arguments

The appellant argued that

• The price adjustments should continue to be calculated using the New Series WPI as both indices were available and applicable for the period in question.
• The circular issued by the NHAI was not applicable retroactively and should not affect the ongoing calculations of price adjustments.
• The adjustments were being made correctly based on the agreed formula in the contract.

The court addressed these arguments by emphasizing the contractual terms and the availability of both indices, ultimately siding with the appellant's interpretation.

Respondent Arguments

The NHAI contended that

• The new circular introduced a necessary adjustment mechanism that should be applied to all ongoing contracts, including the appellant's.
• The linking factor was essential for ensuring that price adjustments reflected current economic conditions.

The court found that the NHAI's arguments did not hold, as the contractual terms were clear and the appellant had been consistently using the New Series WPI for calculations.

Precedents considered

The judgment did not explicitly cite prior case law but relied on established principles of contract interpretation and the enforceability of contractual terms. The court underscored the importance of adhering to the agreed-upon formula in the contract.

Legal principles

The court considered the following legal principles

• The sanctity of contracts and the obligation to adhere to agreed terms.
• The principle that changes in policy or procedure by one party (NHAI) cannot unilaterally alter the terms of an existing contract without mutual consent.

Decision and reasoning

Rationale

The court reasoned that

• The appellant had been correctly calculating price adjustments based on the New Series WPI, which was available and applicable.
• The NHAI's circular did not retroactively change the terms of the contract and could not be applied to alter the agreed-upon formula for price adjustments.

Outcome

The Supreme Court ruled in favor of the appellant, affirming that the price adjustments should be calculated using the New Series WPI. The court ordered the NHAI to continue making payments based on the previously accepted calculations and dismissed the applicability of the new circular to the appellant's contract.

Conclusion

This judgment reinforces the principle that contractual terms must be honored as agreed upon by the parties, and changes in policy by one party cannot unilaterally affect existing contracts. It highlights the importance of clarity in contract terms and the need for mutual agreement when altering contractual obligations.

Read the full judgment on the Supreme Court website (PDF)