if you chose not to move away from your family don't agree to her.She may be trying to pressurize you.
However if her family trying to put pressure on you, record the conversations of their threat of filing complaint . then approach the police and talk to the station officer to intervene and help you.This will be a record to show that your wife has been threatening you for her unreasonable demand.
Please know that your wife has an option under the provisions of law to ask for a separate residence , for that she has to approach a court and file a petition under " protection of domestic against violence act 2005", for a separate residence. But this does not ensure her that you will be with her, so she may not go for it if she wants to live with you.
find out what your wife wants, she wants a life with you or she wants money and divorce from you , if the relationship with you and your wife is working and there are not much misunderstandings, she may not initiate any legal proceedings as she knows it would lead to a divorce ultimately.
so try to talk to your wife, convince her that you wish best for her, tell her your responsibilities and worries about your family, and let her know your decision. If you feel that she is adamant and selfish, can go to any extent to trouble you, involve few mediators (relatives or friends of both families and have a discussion) , this will also be a record if at all an F.I.R from her side.
Be wise enough to have a record of happenings and if possible the conversations. Intimidation from your part, your parents parts will have serious effects if she takes a legal step, so stay away from it.
was there any money/dowry/taken from her family at the time of marriage.Know that her gold , jewelry, money whatever she brought with her belongs to her, so let her keep it with her , so that you can avoid the trouble. if you or your parents have her jewelry under your custody make arrangements to keep it with her. while you have the meeting or discussion with her or her family make an entry of all of it and and get her acknowledgment that she has it with all.
what a wife brings along whither as "sthridhan" at the time of marriage and afterwards is always a trouble for the husband when there is a marital dispute and especially in 498A and dowry cases.
If things don't work discuss about the solution in terms of a mutual divorce, this should be discussed before the mediators or in the presence of both families depending on the situation. It will be unwise to discuss /ask with your wife about divorce while you both are alone , she can interpret it as cruelty.
498A IPC is charged for an offence, for marital cruelty by husband and family, along with dowry demands and harassment . from the narration it does not appear to me that your wife has got a case, if at all she files a false case , that will be only when she decides to end this marriage and demand some money. As every one knows once F.I.R under 498A I.P.C filed the lady has no chance to come back to her husband and family in the normal course.
As of now your wife is staying with you, if she goes to her parents home and you feel that she is planning for a complaint under 498A, you should apply of ran anticipatory bail. In usual case the Police will give you notice under 41 of Cr.P.C to reply your part of case , during this time you will get time to move to court to file a for anticipatory bail.
you will get bail unless there is a serious situation where you have thrown your wife out or physically assault her etc.
Now there is no legal step you can take anticipating your wife would do something.
if your wife go out of the house to her parents place , then immediately approach the court with an RCR (asking an order to restitution of your conjugal rights, asking her to come back) Petition , if you wish to continue in the marriage and this will be a defense to show that your intention to be with your wife.
if she lodges an F.I.R despite your efforts to save the marriage, then don't bow down to her demands and threats , get good legal help and fight the case , and file for divorce on cruelty ground.
that in the legal dispute , the worst is an F.I.R under 498A against you and family , to defend it get an anticipatory bail and take the trial in the court.
If both parties agree to end this amicably, then go for a mutual consent divorce.
So get assistance of a lawyer and depending on the situation take your legal steps to defend you.