Hello Aspirant,

As you have applied for csab round , let me tell you that it is just the same as josaa rounds . You can't change your category now as you have registered or filled in the application during filling jee mains application form OC category so now you can't change to EWS .

If you want to take a drop and try for next year then during that application you can fill EWS as category. Then you can submit the EWS declaration.