Railway Police Force Recruitment - Exam Preparation in Hindi This app provides study material and Practice Test for Railway Protection Force in Hindi. Students can prepare with this app to achieve success in RRB Protection Force exam. यह एप्प सभी छात्रों को रेलवे सुरक्षा बल परीक्षा की तयारी करने में मददगार है|. Content: India GK in Hindi. General Knowledge