1. It seems she has entered in to a bad marriage for which she has all the right to refuse to stay with her husband and take steps to terminate her matrimonial relationship with her husband.
2. However, pragmatically speaking, she will need a shelter and job after coming out of her matrimonial house and also after getting the decree of divorce.
3. After coming out of her marital house, she should not feel like jumping from frying pan to fire.
4. If she has a shelter to stay and can get an assured income to manage herself, then she should first arrange for her said alternate arrangement and earnings then come out of her marital house.
5. Before that she should collect all evidence of the cruel acts of her husband and inlaws through audio/video recording as much as possible.
6. Thereafter she should immediately lodge a police complaint u/s498A of IPC alleging dowry harassment against her husband and in laws and file a DV case claiming maintenance, alternate accommodation and also protection.
7. If police refuses to register FIR against her husband and in laws u/s498A of IPC, she should file a Writ Petition before the High Court against police inaction praying for direction upon the police to register FIR, investigate and act based on your said complaint.
8. Thereafter she can also file a Divorce suit after completion of one year of her marriage on the ground of cruelty.
9. Meantime, she can negotiate with her husband and propose jointly filing of a mutual consent divorce petition on agreed terms which will be disposed of within 6 & 1/2 months from the date of its filing.