Hello,

The eligibility criteria for UPSC that is the examination ypu need to appear in order to become IPS Officer is passed graduation in any discipline from a recognized University, you need to attain 21 years as on 1st August of the appearing year, see there is no such restrictions of belonging to specific stream in graduation when it comes to success for UPSC, if you go by previous year trends then candidates from medical, engineering, commerce stream qualify these exams, yes the advantage that humanities stream students at 10+2 level or those with graduation in subjects like Political Science, History, Geography, Sociology, Public Administration, Economics etc have is there is considerable overlap with the syllabus of GS and optionals, now your stream selection is quite vital, moreover you're young also, in case you have interest towards science or commerce stream and want to have back up plan you can consider the same, else if humanities stream interest you, and you wish to pursue the same in graduation, this path too can be followed, think clearly about your long term goals and then decide, as I said you don't need to belong to any specific stream to become eligible for UPSC, or even to qualify it.