Oh, the beauty of "chalan bhed" and Hindustani sangeet!!! u may already know many scale congruent ragas are distinguished solely on the patterns used, varying focus on notes/parts of scales (uttaranga/poorvanga) e.g. Marwa, Puriya, Sohni. To get an authoritative explanation (in Hindi - but you can get the gist even by merely listening to the music) google "parrikar megh", scroll down to Madhmad Sarang and listen to the audio exposition by Pt. Jha (RU-vid won't allow me to post a link here :( )
