Selecting 2 notes from 4 notes can be done in 6 ways (Mathematically ⁴C₂ = 6). The six possible selections for ri and ga are:

Similarly for da and ni 6 selections are possible:

For each selection of ri,ga we can choose six possible da, ni combinations leading to 6 X 6 = 36 possible selections and for each such combination we can choose either the lower ma or higher ma. We thus get 36 X 2 = 72 combinations. Each combination with one selection of ri,ga and possible 6 selections of da,ni is called a 'Chakra' or group or table. The six tables with lower ma get the numbers 1 to 6 and six tables with higher ma get the numbers 7 to 12. The Melams in table 1 get numbers 1 to 6 and so on. From the number we can get the notes used in the Melam. Numbers 1 to 36 have the lower ma and 37 to 72 have the higher ma. Click here for interactive screen to choose notes and get the Melam. In the page 'Finding Notes of a Melam' we have a quick method to get the notes from the number. The next page will show the logic behind it.