Andhra Pradesh
In Andhra Pradesh, family names are most commonly derived from the name of their ancestral hometown or the family profession in the caste system. The last name or the family name is placed before the first name for Telugu people. However, this practice has been changing slowly to maintain consistency with people from other cultures, particularly in diverse work environments.
Some of the last names of Telugu Brahmins include Tenali, Lanka, Narisetty, Devarakonda, Bhamidipati, Akula, Duvvuri, Pamarti, Addanki, Upadrashta, Vedula, Vedantam, Chakrala, Indrakanti, Addikecharla etc. It should be noted however that last names need not be restricted to a caste all the time.
Padmasalis have their surnames like Damarla, chintakrindi, bitra etc.Some Telugu people have both village name and a caste name as part of their name, for instance Alluri Sita Rama Raju or Sita Rama Raju Alluri. Here Alluri is the surname referring the person's clan/ancestral home town, Sita Rama are the person's first and middle names and Raju is the caste name or sometimes they are called by their caste name alone, like chowdary, Kumar rao, Naidu, Raju, Reddy, Thota. is the most common last name in Telangana. There is no father's name as middle name in this region. In southern Andhra Pradesh, it is particularly common to use the caste name alongside the family name. Surnames starting with Yendluri, Pavuluru(ri) Chowdarys(Naidus) follow this system of naming. The order of ancestry of family names seem to be as follows. Family names ending with sanskritized/prakritized names are from oldest era of pre Jainism (Example: Ghantasala (means place of the bell in Sanskrit). Family names ending with "palle" or "palli" seem to date back to pre Ashokan era of Jainism. Example: Repalle, Parupalli etc., reflecting the ancestry of the place or home town. Family names ending with "palle" or "palli" evolved later during post Ashokan period of Budhism as new towns were established. Example: Gottipati, Bhamidipati, Gudipudi, Rimmalapudi etc.,. As some heroes emerged in families, some families seem to have changed their family names reflectiing respective hero. Example: Baireddy, Veeramachaneni, Katamasani etc.,. And there are family names reflecting proffessions as well.
for example:kaithoju is surname and srinath is first name.
Read more about this topic: Indian Name, South Indian Names