According to Bhatkhande, which note is not used as 'Vadi swara' in the prevalent music?

Correct option is D

Correct Option: d)
In Hindustani raga theory, the Vadi Swara is the "sonant" or king note.
Information Booster:
· According to Bhatkhande's observation, the note Nishad “Ni” is not conventionally used as the Vadi Swara in the mainstream, prevalent ragas of Hindustani music.
· His analysis of the raga repertoire showed that Sa, Re, Ga, Ma, Pa, and Dha commonly serve as the vadi, but Ni is typically not assigned this primary role.
· It usually functions as a Samvadi (consonant second) or an Anuvadi (assonant) note.
· This is an empirical observation of practice rather than a strict theoretical rule.
Additional Knowledge:
· Re, Ga, Dha: These notes are frequently found as the Vadi Swara in many important ragas.
· For example: Re in Bageshree, Ga in Yaman, Dha in Bhimpalasi.
· Sa, Ma, Pa: These are the most common vadi swaras (e.g., Sa in Bhupali, Ma in Puriya, Pa in Desh).