Is Vinadhari a janya raga?

Yes, Vinadhari is a janya raga derived from Cakravakam.

Vinadhari

Indian Classical Raga

ArohanamS R1 G3 P D2 N2 S

AvarohanamS N2 D2 P M1 G3 R1 S

Tradition

Carnatic

Mela

Parent Raga

Composer: Ambujam Krishna

Composer: Subramanya Bhaaratiyaar

Other ragas derived from the same parent melakarta (mela 16)

Abhaya

S R1 G3 M1 P D2 N2 S

S N2 D2 P M1 G3 R1 S

Airavati

S R1 G3 M1 P D2 N2 S

S P M1 R1 S

Aiyyan

S R1 G3 M1 P D2 N2 S

S D2 M1 R1 S