1. You can certainly file FIR against your husband,
2. If police refuse to file FIR, send the complaint letter with a request to treat it as FIR by speed post under copy to local S.P./D.C. and get the track record of delivery from internet,
3. After 15 days, file Writ Petition against police inaction,
4. You husband and his family members will certainly get anticipatory bail since after recent Supreme Court order, police can not arrest without conducting investigation against such FIR and bail is allowed unless there is a chance for the accused to destroy the evidence, influence the witnesses and run away from the clutches of law.