Section 420 - forgery

A case of forgery for signing for a property ownership agreement change has been filed on my wife, who is facing DV and 498a . We had entered into an agreement for buying a house by a builder in Bangalore, the initial agreement to buy the land and construct ,3 years back was made in the name of my son, D I L and my wife. Later on , D I L had agreed to forego her ownership and had sent email to that effect to builder. signature of all the 3 were taken for revised agreement by the builder. Revised agreement was made by the builder and transfer the ownership to me and my wife only. Now the D I L and her father ,due to vengence have filed a case of forgery under sec 420. NBW was issued, but my wife got bail 3 days back. kindly let me know, 1. what is the seriousness of this crime? will she be arrested again after investigations? 2. will she be stopped from travel outside city/state or country? will they ask her to surrender her passport? 3. what is the best procedure to travel outside the country or state? Thanks,