Parental Rights are fundamental and can be very difficult to terminate. Each state has their own laws on what factual basis is necessary for a court to consider a termination of rights.
Review the law in Indiana at http://72.14.203.104/search?q=cache:fGyLytL_AgIJ:www.ssw.umich.edu/icwtp/legalIssues/d-grounds.pdf+Indiana+termination+of+Parental+Rights&hl=en&gl=us&ct=clnk&cd=3
