It really is an old-fashioned phrase and indigenous speakers of English do not utilize it. It can be Utilized in neither British English nor American English. It is nice to avoid ‘respected’ in salutations. I could not locate every other authoritative advice on Indian English greetings online, but when this https://mynichedirectory.com/listings13269697/an-unbiased-view-of-old-brandy-bottle-in-atlanta-ga