What is the form in which an intimation to pay tax under the composition scheme needs to be made by the taxable person?

Composition scheme is optional and intimation that
option has been availed should be made electronically in FORM
GST CMP-01 by the migrating taxable person. A person who has
already obtained registration and opts for payment under
composition levy subsequently needs to give intimation electronically
in FORM GST CMP-02.