Hi Shubham, After 12th in Humanities you can opt for Honours in one among these (History, Political Science, Sociology, Economics, Geography & Psychology). Make sure whatever subject you take should help you in your further studies whether M.A, M. Phil, P.hd or any competitive exam.

Example - If you do graduation in any of the above-mentioned subjects then it would help you in competitive exams like IAS, IPS, INCOME TAX, IFS, and so on. Especially the subjects like polity, history, economics, geography, sociology, public administration are very helpful and scoring subjects.

Hope this will help... gud luck