Bhagya, if you fall in the Creamy Layer of OBC, then you have to select your Category as General Category while filling in the application form. But if you fall under Non creamy layer you have to select OBC. Now even if you belong to OBC-NCL but want to opt out of reservation, you can select General Category. But if you belong to OBC-NCL and you want to claim your reservation, you can change your Category during the correction window when it opens in January 2020.