fals allegations on my innocent parents

Don't worry, her false allegations will not take her anywhere, rather she will loose all false complaints filed against your parents and brother, end her marriage with decree of divorce.

The fact all should remember that any person making criminal charges against another person has to prove the charges with sufficient evidence in the court of law.

As such nowadays with numerous false complaints being made by the wives/daughter in laws against the husband/in laws are being taken very seriously by both the police authorities and court against the complainant only.

The Police to begin will ask both parties to go for counseling for amicable settlement of their matrimonial disputes and the counselor who handles these sessions gets the real truth out from both parties.

The facts that the wife/daughter in law is pressing for unreasonable demands from the husband/in laws will make the report prepared against her and that will result in dismissal of such complaint at the initial stage itself.

Even if the wife files complain in the court under the DV Act against the husband seeking maintenance and place of residence by no manner insist that the ground floor of the house as place of residence from the parents of the husband if the house belongs to them, rather it is the responsibility of the husband to maintain the wife and provide her place of residence at his cost and place where he can afford according to his capacity, this law of the land is very clear and her demand for ground floor of the house will fall flat in the court too.

Now what relief the husband get after her filling all these false criminal complaints against him and his parents, he gets ground for divorce and getting rid of such greedy wife forever.

if the contents of UR query are true,U know that the mother in law too can file Domestic Violence case against the daughter in law,which is defined in section 2(a) of the Act.This is only for information sake.

But my sincere request is to settle everything amicably within the four walls of the household.I condemn the behaviour of the wife and also the involvement of her mother.But it is UR brother who has to take the initiative to settle the matter with his wife without legal hurdles,which will not only make the families go public,but also make them run after police stations and courts.

1. If you give in to unreasonable demands by fearing false complaints, the demands will only become more and more with time. 
2. Never bow down to abuse under threats of 498A complaint. If relationship between husband and wife becomes opressive from either side then it will not survive. Eventually she will file all false cases no matter what you do to prevent it.
3. Better to stand up and call out her bluff from day one. Go file a police complaint that she is making illegal demands and threatening false cases. Record her threats by video and audio.
4. If she leaves to parental home, immediately file police report that she has taken all her things and deserted husband. 
5. If she files cases, let her. All your reports will help you defend the cases. If you refuse unreasonable demands she will have to run pillar-post for years in courts and still get nothing - false complaints never work in long run. 
6. Wife, husband and in laws all have legal rights. Just because some extra laws are there to prevent dowry abuse does not mean your rights have vanished. This is false perception created by unscrpulous lawyers. 
7. If you don't stand up for your own rights, no courts or lawyers can help you. Become aware of your rights and defend them.