 In some contexts, adds White, the term "yogi" has also been a pejorative term used in medieval India for a Nath siddha, particularly on the part of India's social, cultural and religious elites.The term "siddha" has become a broad sectarian appellation, applying to Saiva-devotees in the Deccan ("Maheśvara siddhas"), alchemists in Tamil Nadu ("siddhars" or "sittars"), a group of early Buddhist tantrikas from Bengal ("mahasiddhas", "siddhacaryas"), the alchemists of medieval India ("rasa siddha"), and a mainly north Indian group known as the "Nath siddhas".The Nath siddhas are the only still existing representatives of the medieval Tantric tradition, which had disappeared due to its excesses.