2. The next two strings which in raga Yaman are tuned to Pa and Ga, do they remain as Pa and Ga in raga Puriya or is the Pa tuned up to Dha?

The next two strings which in raga Yaman are tuned to Pa and Ga, do they remain as Pa and Ga in raga Puriya or is the Pa tuned up to Dha?

In Puriya, both strings should be tuned in Ga. While in Marwa, they should be in Dha and Ga (from chikari side). These selected notes are the vadi-samvadi notes of the respective ragas.