My wife is probably cheating with me

Hello, I have got married in last year (3rd of March 2016). After marriage we usually have little confrontation with my wife on various matters, mostly very small things but during confrontation she usually get violent and starts throwing everything, shouting and even biting or beating me. Even though I was okay with it and tried not to get into any confrontation with her. But recently she started doing utter misbehave with my parents, though they don't live with us in Hyderabad rather they live in Kolkata, in my ancestral home. Also I think she is having an affair with her college friend. Couple of days back she logged into her facebook account from my laptop and didn't logout from there, so when I tried to open my facebook account, browser automatically opens her facebook account(as she didn't logged out), and in few notification I have found few conversation which is not at all a regular chat with friend. About qualification she is B.Tech in chemical engineering and previously she used to work for bank. and I am B.Tech in Computer Sc. & Engg and working for a Software company in Hyderabad. She is not earning at present and completely dependent on me. Now my question is am I eligible to file a divorce on these various grounds. Please let me know. Thanks