Hi prakesh,
EWS certificate for EAMCET counselling who are belongs to OC caste. It is also optional.
EWS certificate only gives you a special category for entering college like other students who are in OBC.
I hope it helps you.
If you still having issues regarding this you can comment in below.
(javascript%3A;)
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile