CISF Constable Exam Preparation app from Sana Edutech One stop app from Sana Edutech that provides all preparatory materials in a quiz and eBook format for you to go through and prepare well for CISF Constable Exam Preparation Totally more than 6500 questions, properly categorized in multiple sections, focusing only on upcoming CISF exams - Past 5+ yrs CISF question paper sets 2, Model sets provided - Coverage of questions covering wide variety of subjects - Focusing on India, World events,