Hi,

The categories which you filled during the jee main exam application can not be changed at the time of jee advance exam. The category which you fill on jee main exam is considered in jee advance exam.

So unfortunately you can not fill the jee advance form through the EWS category. As there is no alternative way to change the category.

You can try admission to other colleges with this percentile on the basis of jee main exam result.

If you like you can use the careers360   college predictor tool to know your admission chances in different colleges which you can get this year. The link for which is given below-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope it helps.