Contractual escalation rights and res judicata depend on distinct facts, while revisional interference remains tightly limited.

A contract clause providing escalation becomes enforceable when its stipulated conditions are satisfied, including the existence of circumstances beyond the contractor's control and the required written permission. A later claim based on subsequent factual developments, such as an inspection report and authorised use of an alternate quarry, is treated as distinct from an earlier arbitral reference and is not barred by res judicata. Revisional interference under the Madhya Pradesh Madhyastham Adhikaran Adhiniyam is limited to jurisdictional error, illegality, material irregularity, misconduct, or invalid procurement of the award; absent such infirmity, the award is maintained.

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Issues: (i) whether the contractor was entitled to claim escalation under Clause 3.11(A) of the contract; (ii) whether the subsequent claim was barred by res judicata because of the earlier arbitral award; and (iii) whether the High Court exceeded its revisional jurisdiction under Section 19 of the Madhya Pradesh Madhyastham Adhikaran Adhiniyam, 1983.

Issue (i): whether the contractor was entitled to claim escalation under Clause 3.11(A) of the contract.

Analysis: Clause 3.11(A) permitted escalation where circumstances beyond the contractor's control existed and the Superintending Engineer issued a written order. The inspection report showed depletion of the original quarry, making an alternative quarry necessary for execution of the work. The permission granted by the Superintending Engineer satisfied the contractual requirement, and the Executive Engineer had no authority to impose additional conditions once the contractual prerequisites were met.

Conclusion: The contractor was entitled to claim escalation under the contract.

Issue (ii): whether the subsequent claim was barred by res judicata because of the earlier arbitral award.

Analysis: The earlier reference arose from an initial request made in 2002 when there was no proof of circumstances beyond the contractor's control and no written permission from the Superintending Engineer. The present claim rested on later factual developments, including the inspection report and the written permission granting use of the alternate quarry. The two proceedings were founded on materially different factual situations and could not be treated as the same controversy.

Conclusion: The claim was not barred by res judicata.

Issue (iii): whether the High Court exceeded its revisional jurisdiction under Section 19 of the Madhya Pradesh Madhyastham Adhikaran Adhiniyam, 1983.

Analysis: Revisional interference was warranted only on jurisdictional error, failure to exercise jurisdiction, illegality, material irregularity, misconduct, or invalid procurement of the award. No such infirmity was shown in the arbitral award. The High Court therefore acted within the limits of its revisional power in declining to interfere.

Conclusion: The High Court did not exceed its revisional jurisdiction.

Final Conclusion: The award in favour of the contractor was sustained and the State's challenge failed, with the appeal ending in dismissal.

Ratio Decidendi: Where a contract makes escalation contingent on specified conditions, a contractor acquires the contractual right to escalation once those conditions are satisfied, and a later claim based on materially different facts is not barred by res judicata; revisional interference is unavailable absent jurisdictional or procedural infirmity.

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