RecruitingPhase 3Drug trialV+PSF-M for Tobacco Cessation in HIV Care in IndiaThe goal of this research study is to test an intervention to help quit tobacco use in participants with Human Immunodeficiency Virus (HIV). The study interventions used in this research study are: * Positively Smoke Free - Mobile (PSF-M) (mobile behavioral program) * Varenicline (or Chantix, apovarenicline, Champix or Nocrav)