Dear Pāṭṭu Vādyār,
How are vivādi notes related to non-vivādi notes?
As you know, following are the vivādi notes:
Ṣaṭśruti Ṛṣabham (r3)
Śuddha Gāndhāram (g1)
Ṣaṭśruti Dhaivatam (d3)
Śuddha Niṣādam (n1)
To see the equivalent non-vivādi notes, see the other note where the fingers meet:

