Government contract by written tender and acceptance is binding; damages remain compensatory and require mitigation of loss.
Written tender and unqualified acceptance by an authorised officer can create a concluded Government contract without a formal deed, provided the statutory requirements of writing, expression in the Governor-General or Governor's name, and execution by a duly authorised person are satisfied. The court found the collateral formalities of signing papers and furnishing security did not suspend contract formation, and the contract complied with section 175(3). The defences of mutual mistake and impossibility failed because the alleged misunderstanding was only the contractor's own view and the Government had not undertaken to supply equipment or materials free of cost. Damages remained compensatory, so the plaintiff had to mitigate loss and could not recover the full claim or the unsupported delay amount.
Issues: (i) whether the correspondence and acceptance note constituted a concluded contract; (ii) whether the contract satisfied the mandatory requirements governing Government contracts under section 175(3); (iii) whether the contract was void or unenforceable for mutual mistake or impossibility of performance; and (iv) whether the plaintiff was entitled to the full damages claimed, including the claim for delay.
Issue (i): Whether the correspondence and acceptance note constituted a concluded contract.
Analysis: The tender had been accepted without any condition making further signature or deposit a prerequisite to contract formation. The requirement to furnish security and sign the enclosed papers was treated as a collateral formality and not as a term suspending the conclusion of the bargain. The parties were ad idem on the material terms, and the later documents did not introduce any fresh essential term requiring fresh assent.
Conclusion: A binding contract had been concluded.
Issue (ii): Whether the contract satisfied the mandatory requirements governing Government contracts under section 175(3).
Analysis: A Government contract must be in writing, must be expressed to be made by the Governor-General or Governor, and must be executed on behalf of the appropriate authority by a duly authorised person. A formal deed is not indispensable if the contract is evidenced by tender and acceptance or other informal writings, provided the statutory requisites are found in them. On the document as a whole, the tender was made to the Governor-General and the acceptance was by an authorised officer on his behalf.
Conclusion: The contract complied with section 175(3) and was valid.
Issue (iii): Whether the contract was void or unenforceable for mutual mistake or impossibility of performance.
Analysis: There was no basis to invoke the rule of mutual mistake because the alleged misunderstanding related only to the contractor's own appreciation of the work and not to any essential fact shared by both parties. Nor was there any legal impossibility shown, since the contract did not oblige the Government to supply cranes or materials free of cost, and the contractor had undertaken to provide the necessary equipment himself. The plea of impossibility was unsupported by the correspondence and conduct of the parties.
Conclusion: The defences of mutual mistake and impossibility failed.
Issue (iv): Whether the plaintiff was entitled to the full damages claimed, including the claim for delay.
Analysis: Damages for breach of a works contract are compensatory and must reflect the loss reasonably caused by the breach. The plaintiff was bound to mitigate loss and could not recover expenditure needlessly swollen by an unreasonable choice of replacement contractor. The claim for the delay amount was unsupported by proof of loss and was in substance a penalty, not compensatory damages.
Conclusion: The plaintiff was entitled only to reduced compensatory damages and not to the full amount claimed, and the delay claim was disallowed.
Final Conclusion: The appeal succeeded only in part, resulting in a reduction of the decretal amount while the plaintiff retained a limited right to compensation on the proper measure of loss.
Ratio Decidendi: A Government contract may be validly concluded by written tender and unqualified acceptance through an authorised officer without a formal deed, but damages for breach remain compensatory and are subject to the duty to mitigate loss.