UPSC CAPF 2021: How to Prepare for Paper 1, 2, and Interviews? Union Public Service Commission (UPSC) conducts the CAPF AC Exam once a year. CAPF AC written examination is the Stage-I of the CAPF AC selection process. The written examination comprises 2 papers, Paper I and Paper II. So, are you planning for the exam this year? If yes, then refer to this piece of information for your preparation! We have shared here tips to prepare for UPSC CAPF Paper 1 & 2 along with Interview tips. Paper 1 will consist of multiple-choice questions on general ability and intelligence having four alternatives. Paper 2 is of descriptive type and questions are on General Studies, Essay and Comprehension. Read on to check CAPF Paper 1 & 2 tips, and Interview Tips.