Hello Vidhi,

Since SOL is a part of University of Delhi and gives you the same degree as given to any regular student by the name of University of Delhi. So without any fear you can opt for SOL.

SOL is also known as School of Open Learning which is made for the one's like you only who can't attend full 3 year course and want to do something simultaneously as you are preparing for CA. 

I Hope you do well in future and become an asset for the country.