Wikipedia
Arabhi
Arabhi or Aarabhi (pronounced ārabhi) is a ragam (musical scale) in Carnatic music (South Indian classical music). It is a Janya raga (derived scale), whose Melakarta raga (parent scale, also known as janaka) is Shankarabharanam, 29th in the 72 Melakarta raga system.
Arabhi is a raga that dates back to 7 AD. Originally, it was called as pazhanthakkam in Ancient Tamil music. Then it was sung in a mixed variation of Devagandhari and Arabhi that is in use currently. These two ragas are clearly distinguishable in current form.