Dear Suraj, I can understand the ditress that you and your family must be in due to your father s condition. From what you have described, he seems to be manifesting behavioral symptoms. But to exactly tell what he is suffering from, more details regarding his symptoms would be required. It could be a mood disorder like bipolar disorder or psychotic disorder like schizophrenia. I would suggest that you seek a psychiatric consultation for your father so that he can undergo complete evaluation and accordingly treatment can be instituted. I am sure with adequate treatment with psychotropic drugs, your father will be better. I do hope that I was able to answer your query. Best wishes, Dr. Sunil Gupta