[1] It is called Jyōtirāga or Joti[1][2] or Jyōti[3] in Muthuswami Dikshitar school of Carnatic music.
The mnemonic phrase is sa ru gu mi pa dha ni.
[1] Its ascending and descending scale (ārohaṇa-avarohaṇa structure) is as follows: See swaras in Carnatic music for details on above notation.
The notes used are shatsruthi rishabham, antara gandharam, prati madhyamam, shuddha dhaivatham, kaisiki nishadham.
Jyotiswarupini's notes when shifted using Graha bhedam does not yield any other melakarta rāgam.