Girl Child custody and divorce from wife

We both married from last 9 years. I am Hindu and my wife is Christian. After 3 years of marriage when my family accepted us that time my wife told me she need one year time to make mind to stay in our family. After 5 years also she keep saying next year we will go. So many times we had discussions on this matter. Her father don't want her daughter to stay in different city so he is supporting her. Just before 1.5 years back she took permission from me to do job. From the first day of marriage I didn't stop her against her wish. I gave permission her to do job as we are having our daughter of 8 years old. She committed that she will take good care during job. She joined in call center where they r having only night shift. Full year of school of my daughter is wasted because she not even taking care of our daughter food health education etc. Whole job 1.5 years of time she ignored our daughter, she went so many times with that guy and left our daughter in neighbors house. So many times we discussed please leave this job we can start business. But she refused me every time. In last January 2020 suddenly she met one colleague in her office where she started affair with this guy. During that time I stuck because of lockdown during Corona virus'issue. When I came after 9 months not even I spent 24 hrs at home , she left with luggage without informing me that she is going somewhere else, she made complaint on me about domestic violence with help of her father. Father and her family now full threating me always that I m outsider and they can do whatever they want because law will listen only women. In whole marriage years I spent 100% time with my wife and our daughter. I taken good care of her family too as my family. Now she is hiding her affair from me and now her family members playing game with me that after I go to my job, my wife will go with that guy and spent time to check whether he is ok for her or not and our daughter will be at there sisters home. All are betrayed me specially my wife. I am having all documents of her affair. I need divorce and my child custody.