Reg for understanding the repurcussions of divorce

Hi I am male software engineer working in usa. I got married 2 years back in India. We both are software engineers working in usa. Lot of quarrel and issues happened between us and we are are working/staying separately for past 1 year. The main isssue is due to her and her family ego and bad behavior. Me and my family have tried to discuss the issues several times but they dont bother. I have several proofs of cruelty she did to me due to our 1 year stay. Now due to my mother health issues, I have to come to India(planning in august month). Can you please let me know the following - 1. Can I get my divorce paper work started now so that i can sign them as soon as I arrive in India. I fear if I come she will follow me and will create issues. 2. Can i get a stay order or something which will prohibit her from forfecully entering my home. I am afraid she can enter and after few days can false accusations against my family to overturn this divorce. She has not stayed with my family till now so I am aware that she cannot use Domestic violence and other issues against my family as of now. 3. Her residence is in UP state. Since my sisteris staying in Haryana can i file divorce in Haryana state or there is any state specific boundation. 4. I want to know the repercussions of this. I have lot of videos and other proofs which can prove the cruelty she has shown to me. I belong to a middle class family and have to support my family. Since she is working in usa and independent will I be bound to pay her alimony.