Aro : S G2 M1 P N2 S
Avaro : S N2 D2 P M1 G2 R2 S
So, the most popular number in this rAgA, by DKP : https://www.youtube.com/watch?v=54yIqReUGl4 - the whole essence of this raga along with some swaras is packed into this 6 minute rendition - I want to sing it like this, as they did!!

The other number that Madurai Mani Iyer made famous is "kandan karunai" :- https://www.youtube.com/watch?v=jvsI7B-8tjQ - so famous that I have a recording of the audience bursting into applause when he started it. According to one comment on this, MMI even did neraval (and probably swaras??) for this.
The story is that both MMI and his friend Chitti alias PG Sundarrajan were inspired by the song veena madhura madhura kachu bOl to come up with this song. In fact, I found it here : https://www.youtube.com/watch?v=4JJfdVjjTYE