The tailor said to him, "Will you have the suit ready by tomorrow evening?"

In indirect speech, questions are typically reported using the conjunction "if" or "whether." Additionally, the verb tense may change depending on the context.

Therefore, the correct conversion of the given sentence is:
The tailor asked him if he would have the suit ready by the next evening.

Option A is incorrect because it uses "that" instead of "if" and does not change the verb tense.
Option B is incorrect because it uses "would had" which is grammatically incorrect. The correct form is "would have."
Option D is incorrect because it uses "will like to" which is grammatically incorrect and does not change the verb tense.
Therefore, the correct option is Option C.