Step1: Be mentally prepares to leave this abusive marriage. The person will never change.
Step 2: Get evidence of abuse – pictures, recording, MLR from a govt hospital. Most of government power doesnβt stand ground in front of a strong evidence.
Step 3: Give a police statement on Domestic Violence attaching the evidence. (Section 498). Police might not register an FIR immediately, which is okay.
Step4: They will refer to Women Station, which will take it forward.
These are bare minimum to ensure your friend is positioned to win, and no power can make police ignore her case. Then your friend can decide to lawyer up and press for FIR is she wish to
Annulment will be best. Most likely the husband will come to negotiating table once he sees a police complaint against him(even if itβs not an FIR).