This rAgA comes from Dikshitar's school.
A: S R1 G1 M1 P D1 N3 S
Av: S N3 D1 P M1 G1 R1 S
This as you can see is identical to gAnamUrti. But it's not the 3rd asampoorna mElakArta rAgA (that is gAnasAmavarALi)
Only one composition is known from the Dikshitar school - matsyAvatAra mAmava
Of which this is the only recording I could find. https://youtu.be/x6NLIjlyMAY - from the artiste's own YouTube channel
At this point I have been listening to a lot of Dikshitar krithis these days. Dikshitar is a lot like Mozart. Correction, he's actually closer to Bach - old school music. At the same time, it takes some skill and a lot of thought and work to properly bring out the rAga bhAva and the gamakas in many of his original tunes. Many of Dikshitar's around 500 kritis have hardly come out and haven't gone through the same growth and exploration phase like his more well known compositions or Thyagaraja's kritis - some of them have just recently emerged from the book literally. Unlike Thyagaraja, Dikshitar is a puzzle to be cracked open, but the reward is worth it.