You should have a general understanding of the topics covered in the UP Constable syllabus so that you can identify which topics require more attention and which are stronger.
From World Geography to Indian History, you must memorise a lot and be well-versed in everything. To cover such a broad syllabus, you must plan ahead of time and stick to your schedule.
UP Police Constable Online Mock Tests should be practised on a regular basis to determine where you stand. Make notes while analysing mock tests after you've finished them so you know what you need to improve. Testwale.com offers a free UP Constable Test Series designed by experts