Yes sir , i understand your query related to the ews certificate as follows:

Students who have applied for over 500 seats reserved for economically weaker section (EWS) at the 23 Indian Institutes of Technology (IITs) are facing trouble in getting the EWS certificate from the concerned state authorities. According to the IIT Roorkee that is organising the JEE Advanced exam this year, there are about 12,000 students from all over India who have registered under the EWS category.