I had hoped that once I returned to Bengaluru I would regain my own name and when this girl addressed me as 'Doreswamy' I just blew a fuse!
I wonder if there is a movement in the south to go back to our old system. Worth investigating. I think tracing back people to their roots in these insecure days makes more sense than identifying them by caste or profession and so on.
Thai names, both given name and family, are often long and there are a great many of them. The diversity of family names is because they are required to be unique to a family, and they are a recent introduction. Further, Thai people change their family names relatively frequently (this practice being virtually unknown in many other countries outside of marriage).
Last names became legally required of Thai citizens in 1913: before then, most Thais used only a first or individual name. The names generally convey positive attributes. Under Thai law, only one family can use any given surname: thus any two people of the same surname must be related.
Thai surnames are often long, particularly among those of upper-class families. According to the current law[clarification needed], to create a new Thai surname, it must not be longer than ten Thai letters, vowel symbols and diacritics are not counted.
As a measure of the diversity of Thai names, in a sample of 45,665 names, 81% of family names were unique, and 35% of given names were unique: the people with shared family names are thus related, and the diversity of given names is conventional.