Divorce on mental cruelty basis

Dear Sir, I have been married since Dec 2008. Having tow kids 7, 5 years boys. Because of the arrogant behave of my wife i had to shift her to new house in another city. Being honest I had given dedicated 8 years to survive this relationship, but now i have started loosing my confidence in myself. I am madly in love with my both kids, just because for their sake i had been carrying this relationship. But from last few months it has been getting out of tolerance level. My wife does not tolerate anyone from my family. Even i have to leave for office without food. Everything depends on her mood, She has become very arrogant and behaves like my owner. She always speak about her legal rights. And she also says that she would never divorce me and spoil my life like this.She does not even allow any of my family (mom, brother, sister) to come to my house. I would request you that on what ground i can file divorce case, and i would also request that how can i keep kids with me. And what proof i need to start collecting for that. Regards Rohit Sharma