The divorce petition, counseling reports, MCD petition, leave record, visits etc as pointed by you may suffice to proceed against spouse on grounds of cruelty.
Your own very able senior LOCAL counsel of unshakable repute and integrity specializing in Family matters and having successful track record must have already advised you.
If you are not satisfied with your counsel, change the counsel.
Discuss with a able counsel in person.
I am sending you a few links and you may pick up the relevant points.