Caught you , you are the one who also previously asked same query. And I there also replied same.
You know what's the problem with you ?
You want answer which are in your mind & are favorable.
Ok, I'll give favorable answer.
Go file 498a/406/4/dp & Dv 125 act. These are some common acts who can disturb your's sis inlaws. Consult any ( I mean any , even mentally retarded ) advocate. He can advice you for these laws these days. Go file them & see the consequences yourself.
Now I give answer you want.