krishan @kk.chaurey@gmail.com • Joined Aug 2019 • Active 2 years ago Remove Connection Are you sure you want to remove from your connections? Profile Timeline krishan's Bookmarks krishan's Bookmarks Bookmark CategoriesAll Categories PrelimaAll BookmarksShare Last Minute Revision Notes for UPSC CSE Prelims 2021 #Prelima [Strategy] Most-Probable Topic Areas for UPSC Prelims 2020 (with mindmap notes) #Prelima Important Terms in Ancient, Medieval & Modern Indian History for UPSC Prelims #Prelima