Hi Candidate,
EWS refers to the Economically Weaker Sections of the society under the General Category and is a special Category with 10% of reservation for its candidates in government Institutions.
EBC refers to the Economically Backward Classes and they may or may not belong to the General Category. Both, the classes might sound similar but for Documentation one must stick to the prescribed guidelines for specific format of Category Certification.
Hope that this answer helps you. Have a Good Day.
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