Separation from Wife

Hi, I am from Faridabad, I am fed up with my married life and want a peaceful separation from my spouse. Following are the reason /background for my Separation initiation:- 1. Immature behavior with in Laws despite attaining 35 years of age. 2. Lack of common interest between Husband and Wife. 3. Medical illness of wife, No child till 9 years as of now despite multiple level of treatment. 4. Now suddenly came to know about her one kidney failure due to Ovarian Cyst, hence another surgery will be done to remove Uterus, Ovaries. In short, for most of the time in 8 years, she remained ill due to various Gynecological problems. 4. Impacted sex life, less libido in Wife. 5. Frequent arguments and Behavioral issues. She is earning around 39K per month , hence capable to run regular expenses herself. We do not have Child. I want to leave peacefully single, Kindly suggest what are the possibilities, process, approximately time and expenses. Also, I do not wish to pay any alimony to her after separation and want to have zero contact with her.