Divorce procedure and expected problems for husband

I am a government oficer (banker) I am married for 5 months. It was totally aranged marrige. Me and my wife got the time of some days before marriage to talk over phone . It is now observed and experienced that so many things told by her and her parents are wrong about her nature and behaviour. She was totaly fake. She fights alot and using wrong words about me and my mother . I want to file for divorce But I am afraid that she and her father would file FIR against me in false cases . What should I do? In case i file for divorce , do I meed to pay any alimony to her ? She is university topper in M Tech and she was earning fairly before marriage . she has 6 years of experience in job. Before maariage she told me that she will work , but now she has refused after marriage . Her father and brother are rich enough and she herself os capable enough of earning So please help me with following questions - would I be required to pay alimony What should i do if they register FIR in false case