A contract not specifying the place of performance . . . . . . . .

Indian Contract Act: The Indian Contract Act, 1872, governs contracts in India. A contract is an agreement enforceable by law. A crucial element is the performance of the contract, which involves fulfilling the obligations agreed upon by the parties.

Place of Performance: This refers to the location where the contractual obligations are to be fulfilled. If the contract doesn't specify a place of performance, the law provides guidance on determining the appropriate location.

Correct Answer: C
The correct option is C: The promisor has to apply to the promisee for appointment of a place of performance and perform the promise at that place.
According to the Indian Contract Act, if a contract doesn't specify a place of performance, the promisor (the person making the promise) must request the promisee (the person to whom the promise is made) to designate a suitable place for performance. The performance must then take place at the location specified by the promisee.

Why other options are incorrect:
A: Can be performed at any place to the knowledge of the promisee: This is incorrect. The promisor cannot unilaterally decide the place of performance. The promisee's consent is required.
B: The promisor need not seek any instruction from the promisee as to the place of performance: This is incorrect. The Act explicitly states that the promisor needs to seek instruction from the promisee in the absence of a specified place of performance.
D: The promisor can perform the promise at a place other than the place appointed by the promisee: This is incorrect. Once the promisee designates a place, the promisor is bound to perform there. Performing elsewhere would be a breach of contract.