Following chart may come handy while translating western notes of any tune or song into Indian Sargam, and vice-versa.
The letters in all the above rows (column wise) generally follow a sequence. For example, if we start the scale at F, then the sequence would be FGABCDE, or when at B, it would be BCDEFGA, and so on.
Sa Re Ga Ma Pa Dha Ni and Do Re Mi Fa So La Ti remain constant.
Every musical instrument can be tuned to a certain scale. With the above example, we would be playing Sa at C scale.
Following video tutorial will help you understand this concept with more clarity: