hi,

Yes, you can apply for JEE B.Arch if you have scored 65% in your 12th exams and you belong to the OBC category. For JEE B.Arch, the basic eligibility is that you should have passed 12th with Mathematics as a compulsory subject. The percentage requirement for OBC category is relaxed compared to the general category. Usually, candidates from OBC need at least 65% in their 12th board exams to be eligible. So, with your score and category, you are eligible to apply for JEE B.Arch.