At the end of a very polite letter to gauge my interest (none, as it happens) in leasing office space near Delhi (India, not New York), my correspondent advises me:
>> You may kindly revert for furtherance.
This is absolutely the way I am going to start closing all my business letters, as soon as somebody explains to me what the hell it means.
(In context, it seems to mean "please contact me if you want to talk about this.")
I don't think it's the kind of phrase that would be terribly useful in conversation, but if so, I think the tone of voice in which one said it would have a lot to do with whether one got kissed or punched immediately thereafter.