An Avarohana, Avarohanam or Avaroha, in the context of Indian classical music, is the descending scale of any raga. The notes descend in pitch from the upper tonic (taar shadja or Sa) down to the lower tonic, possibly in a crooked (vakra) manner.
In Sahana, a janya raga of 28th melakarta Harikambhoji, the Avarohana is S N2 D2 P M1 G3 M1 R2 G3 R2 S. This raga in its avarohana has the notes jumping from one to another (a bit like Dattu). This changes the whole feel of the raga, making Sahana a beautiful raga to listen to.
- Ragas in Carnatic music by Dr. S. Bhagyalekshmy, Glossary pages, Pub. 1990, CBH Publications