Ews category and obc both are different categories previously Jaat in Uttar pradesh comes under OBC category but in Central government it comes under General category.The Supreme Court of India removed the Jat community from the Central List of Other Backward Classes (OBCs) in 2015

you may be eligible to apply for an Economically Weaker Section (EWS) certificate it totally depends on the annual income of your family if you belong to the general category in the central government and your family income is less than Rs 8 lakh per year you can obtain it from the authority.