Which all are the best colleges for me to take B.A. Political Science? I scored 86% in my boards.

Delhi University, colleges under Calcutta University, etc. are the best for B.A. Political Science Hons. Other colleges are also there- Please check this link once. https://www.shiksha.com/humanities-social-sciences/political-science/colleges/b-a-colleges-india

In my opinion, DU is the best college in India for studying Political Science. You should apply for the course there. Admissions in DU are merit based and you have a fine result.