It is called Dhavaḻāngam[1] or Dhavaḻāngi[2][3] in Muthuswami Dikshitar school of Carnatic music.
The mnemonic phrase is sa ra gu mi pa dha na.
[2] Its ārohaṇa-avarohaṇa structure (ascending and descending scale) is as follows (see swaras in Carnatic music for details on below notation and terms): (the notes used in this scale are shuddha rishabham, antara gandharam, prati madhyamam, shuddha dhaivatham, shuddha nishadham) As it is a melakarta rāgam, by definition it is a sampoorna rāgam (has all seven notes in ascending and descending scale).
A few compositions set to Dhavalambari are: This section covers the theoretical and scientific aspect of this rāgam.
Dhavalambari's notes when shifted using Graha bhedam, yields no other melakarta rāgam.