Hello Student  ,AS you

Belong to Vj/NT category according to your for father and parents and ancestral relation then it will be better for you to collect the caste certificate of your category from the respective department of state government after applying for it and maintaining all the formalities that required for it may get  after proper official enquiry by the respective authority.

EWS certificate is for economic weaker section that belongs to general category. To get it candidate's  family income is below 6 lacs per annum then the candidate is eligible for getting evaluation certificate under full filling some conditions mention by the ways offering official. EWS certificate never offered to the candidate  belongs toSC or St or OBC category..

Hope this will help.