According to the information available many colleges take ews certificate for other states and You have to check for the particular state conditions but in many option it is allowed On the basis of EWS certificate, an individual can avail the benefit of reservation of 10% for EWS section in colleges across the country.   To claim the benefit of 10% EWS reservation in any govt. admission candidates have to essentially produce the valid EWS certificate issued by the competent authority.