Explanation:

Satyabrata Ghose vs. Mugneeram Bangur & Co.

In the present case: Firstly, war condition were known to the parties while entering into the contract such they were aware of the possible difficulty in performance of the contract, in such circumstances, the requisition of property did not affect the root of the contract; Secondly, no stipulation as to time was provided in the agreement such that the work was to be completed within a reasonable time, but having regard to the nature of the development contract and the knowledge of the war conditions prevailing during the contract, such a reasonable time was to be relaxed. Therefore, the contract had not become impossible of performance u/s 56.