Objectives: 1. Assess the knowledge regarding human rights of mentally ill patients among patient Caregivers. 2. Assess effectiveness information booklet on knowledge regarding human rights of mentally ill patient among patient caregivers. 3. To find out the association between demographic variable and knowledge level. Materials and Methods: One Group Pre test Post test Experimental Research Design was used to conduct the study among caregivers and totally 30 caregivers was selected by convenient sampling technique. The study was conducted at psychiatry OPD at Krishna hospital, Karad. The data were collected by structured questionnaire. The knowledge regarding human rights of mentally ill patient among caregivers was measured by structured questionnaire. The collected data were studied and analyzed in terms of objectives of the study using descriptive and inferential statistics. Results: pre–test mean was 5.53 and post– test mean was 11.1 and the calculated t value was 9.415 was found significant at p<0.0001 level. Conclusion: the information booklet is effective method for improving the knowledge level of mentally ill patient among caregivers attending psychiatric OPD.