Divorce under adultery and Mental cruelty

I have caught my wife red handed with her Lover in July 2016 and the hotel where she stayed in Bangalore provided me a covering letter stating the facts that my wife stayed in the same room with her lover and all the proof of the hotel booking made by her lover and the payments made by my wife through debit card and cash. Similar proof was provided by another Hotel in Bhubaneshwar . She does not have any physical relations with me . She also tatooted name of her lover on her breast to inflict mental trauma on me in connivance with her lover .Again she absconded recently in October 2017 probably with a new man in her life during her trip to her cousins place in Baroda. I am fed up and want to divorce for adultery & mental Cruelty . I have put economic sanctions on her . Can I stop paying for her medicines as per Indian law . Currently she working in a School and is earning . She is estranged and do I have to provide her for food, shelter and medicines as per Indian laws.