It truly is an outdated-fashioned phrase and indigenous speakers of English don't utilize it. It is actually used in neither British English nor American English. It is nice to stay away from ‘highly regarded’ in salutations. I could not find any other authoritative assistance on Indian English greetings online, however, https://directoryserp.com/listings13292778/5-easy-facts-about-best-red-wines-in-atlanta-ga-described