This might be true because when ridhima came back to sanjeevani , and padma told him to tell her the truth ... then he said he wont coz ridhima gets into trouble always because of armaan. So he might have asked him to move away from her life and convinced him to believe that he was the cause of all the troubles. And hence he was transfered to Panchgini.
Otherwise, why would there be a picture of the panchgini hospital in his locker ??