hi,

sorry to say if you have not applied for ews category during the application form filling, you can not change the category right now. so based on your general category score your cutoff score for advanced would be considered and you have to participate in the counselling from general category. right now even if you have the certificate or any other documents to support your ews criteria , nothing would be entertain cause the dates to change the category and necessary information has already passed.

hope you may understand.