maintenance issue/ is that wife stay in matrimonial house

sir, mere bhai ki wife bht hi crue behave karti hai, shadi ko 5 year ho chuke hai.. mere maa papa ne us ki harkato se tang aakar shadi k 1 year me hi hmne usko ghar se rent par bhej diya.. fir bhai apni biwi k sath ghar se kuchh door rent par rehne lga.. lekin uski wife bina wajah mere se ladai karti rhi.. is beech unki 2 year ki beti bhi hai.. ab bhai ki covid me job chhut gai thi to usne sasta ghar rent pr le liya. to uski wife ghar chhod kr chli gayi. or aane se mna krti hai,, kehti hai ki metrimonial house me maa paapa k ghar rhoge to aaungi.. par hmare gharwale usko nhi aane dena chahte..bhai hmare sath rehta h kyuki rent wale ghar me akele kese rhe... kya uski biwi uspar koi case file kar skti hai metrimonial house me rehne k lie mere maa papa pr case kr skti hai pls btaye.. wo job working hai,, 15-16 thousand me.. to kya mentenance etc maang skti hai beti ka and apna?