Wife raised domestic charges against husband

Hi Sir, This is regarding my Brother whose wife has recently filed a complaint against him. We were summoned by the Women's commission to attend counselling sessions both the husband and wife have presented themselves. The charges raised are not genuine and we feel stuck with them as nothing seem to be possible. wise says she has proof of him hitting her. There had been instances where the conversation aggravated with both getting a bit physical. However, there has never been a motto behind that. Truly, she has never been able to adjust with the parents and now she is trying to falsely accuse my brother and that is clear because she is still ready to live alone with him. Please help us out with some valuable advice, whether to give in to it as for now or fight the case. From all what we understand, there is one whatspp conversation between him and her where he stupidly agrees that he has " physically tortured" her and replies that she has mentally tortured him, but it was when she suddenly went absconding one morning and would not return. There are no other proofs that we know unless the female had recorded anything. Appreciate your reply.