Identification of a small to mid-sized, yellow moth species found in India at monsoon season
This is likely a member of the Nygmiini moths. The Nygmiini are a tribe of tussock moths of the subfamily Lymantriinae (formerly called the Lymantriidae) of the Erebidae family

A specimen that closely resembles yours can be seen here, and copied below:

 

I have not found a definitive species for you, but will keep looking. I'd advise you try to do the same given this information.