Related to section 498A (Dowry harrassment)

Criminal case appears to be on the cards.

However, it is rare that the husband is not accused in case of dowry demand or domestic violence.  You being co-complianant with your wife can save yourwself from this trouble.  In that case you will be witnesws and not accuswed.

Now regarding you being thrown out of house (or just being threatened) this is another evidence .

You have not commmenteed :-

1. what is your profession?
2. what isw your parents professiion?
3. how the house was procured.

Hii

Your wife can't be kicked out of her matrimonial home wether it's owned by you or your father.SC had passed a landmark judgement a year ago.

First of all file an application u/s 23 of DV act to get Residing order and other reliefs under relevant sections.

You can book brothers wife under IPC 504. 
 

But as a preliminary step I would suggest approach police station let your wife submit a Police complain in Women Cell this will be sufficient enough to put certain pressure on the respondents.

For any other help you can contact me.

Advocate Pallabh Haldar