English Grammar – Revert vs Reply
Definition: to return to a former state; to start doing something again that you used to do in the past
Example: Please do not revert to your old habits.
Definition: to say or write something as an answer to somebody or something
Example: I will reply to his letter shortly.
Therefore, “I will revert to his letter shortly” is INCORRECT!
Sponge ME, English Tuition (Singapore)