Is "I will do X and respond" preferable to "I will do X and revert" [duplicate]

It is Indian English. Just like American English and British English have different rules, so does Indian English. If you are Indian and communicating with Americans or Brits, you will make yourself more clear if you say "respond" instead of "revert". If you are speaking to Indians, "revert" will probably be perfectly clear (but I'm not an expert on Indian English).