Hello Tanzeel, 

Congratulations on scoring 90%

If you wish to take admissions in Delhi University's College in North Campus with your scores using your OBC Category Certificate, you can get colleges like Indraprastha College for Women, Daulat Ram College, Kirori Mal College, Hansraj College and Ramjas College in courses like BSc. (Hons) Life Sciences, Electronics, Chemistry, Anthropology, Botany, Zoology and Applied Physical Sciences with Chemistry and Bio-Chemistry.

Since you have not mentioned your specific choice of subject, thus I have given you an idea of what kind of subjects you can select if you wish to go to a college in North Campus.

I would suggest you to go through last year's cut off to get a better idea.

I hope this was helpful!