If you are preparing for CLAT then you can use the same material for MH CET Law preparation.

You can refer You can refer following books and study material for each section.

Verbal and Non verbal Ability by TMH PUB.(Arun Sharma)

Quantative Aptitude- RS Agrwal

For GK you can prefer Newspapers like The Hindu, Indian Express

Or you can also refer Carrer Launcher material which is very good & very systematic for the study.

Good Luck!