1. Are the couple living together or apart ?.
2. Assuming that the wife is not living with the husband, file for Restitution of Conjugal Rights.
3. From your narration it appears that the family court has asked the husband to report for mediation and to settle the matter amicably.
4. The wife has to have the evidence against the husband to complain to the Police.
5. Police cannot arrest a person, without investigating the matter thoroughly and after collecting evidence only the Police can proceed.
6. If it is later proved in the court that the wife had given a false complaint against the husband U/s.498A and Domestic Violence Act, this itself could be used as a ground by the husband for obtaining divorce.
6. Take the help of a Lawyer, if the situation warrants.