Rights a women have before divorce

Its about my close family member. She married in 2008 and she is a housewife. They have a daughter of 7 years old. He is a very anger person and does not support her in any manner. He shouts at her for small petty things and doesnt give her any respect. She is losing her own identity and very depressed. they had a quarrel last week and she came to her parents house along with her daughter. She called him on the same day but he said don't disturb. She left and living with her parents. He didn't call her after that incident. Now she wants to know what are the rights she has on her daughter and how can she proceed further? Many suggestions are coming and we are not able to choose the correct option. She is not willing to back as she went back in previous quarrels. She adjusted and adjusted and now it crossed the threshold and she does not want to go back. We know that filing a case will not serve any purpose. 1. She wants to get the rights on her daughter (7 years old). 2. She wants to know maintenance related details 3. How can she go for divorce with these circumstances. 4. He didnt call her and its been one week, what are the rights does she have to take action against him?