Tenant creating third party intrests .............

My original tenant is Mr A, he handed over property to Mr B, I don't have a written agreement and the tenancy is about 30year old... We had filed a suit for rent control and got a ex party decree, now a third party files petition saying he is the tenant... We have got his implead dismissed two times and civil side we are already fighting... Can I file a criminal case on the original tenant under any charges... Please specify... Intention is to harass the tenant. I have already made several leakages in the property, for which tenant B has filed a police complaint against me... I wish to file a reverse complaint on tenant A... Plz suggest what charges I can press on him...