My sister filed for restitution of conjugal rights. but brother in law sent divorce notice(Form No 11 Rule 15)

Hello, My sister and brother-in-law, who got married in 2021, live in Qatar and have a 6-month-old baby girl. They had a few fights that led to a police complaint in Qatar. In April 2024, he brought my sister and their baby to India, left them in front of our house, and then departed. His parents in India refuse to let my sister stay with them. Consequently, we filed for restitution of conjugal rights and a Domestic Violence Complaint (DVC). Meanwhile, we received a Form No. 11 (Rule 15) notice from my brother-in-law. He is now back in Qatar, and we have no way to contact him. How can we help them reconcile? My sister is feeling conflicted, especially since she is still experiencing postpartum emotions. Any advice would be greatly appreciated. 1) Is he asking for a divorce? If yes, is it mutual or disputed? 2) What about their baby(9 months old as of today)? Who will get custody? He didn’t even touch the baby when he was home. 3) What happens if my sister still wants to live with him? I hope this helps! If you need any further adjustments or have more details to add, feel free to let me know.