Pratapavairali is in fact a raga from the Carnatic music tradition, and a very minor raga at that. It is more scale than fully-formed raga. It has a selection of notes of Harikambhoji (equivalent to the Khamaaj thaat in Hindustani music).
In my view, the Pratapavairali is adopted from Karnataka Raga Harikamboj Melakarta.
Excludes G N in Aroha, and N in Avaroha
Aroha in Vakragati
Aroha---- S R m P D P S
Avaroha----- s D P m G R S
Serious, contemplative, Devotional.
Night 1st. Quarter to Midnight.
Close to Raga Durga.