This application is very helpful for RRB NTPC Aspirents contain 20 Sets of GK previous year question. I think if you are preparing for RRB NTPC this app is very helpful for preparation of Exam.
Railway RRB NTPC Exam 2020

Railway Recruitment Board has announced 35277 posts in Non Technical. The complete preparation package for Railway NTPC in Hindi is provided in this app with previous papers of Railway NTPC exam.

RRB NTPC Exam 2020 GK
RRB NTPC Exam (Indian Railways Recruitment Board)

App shall benefit students preparing for

RRB ALP - Assistant Loco Pilot
RRB Group C and
RRB Group D category
RPF - Railway Police Force and
RPSF exams
RRB NTPC Examination Syllabus - RRB NTPC exams are specifically asked questions related to India and neighboring countries such as history, culture, geography, economic scenario, general policy and related to scientific research, etc. While preparing for the General Awareness section, you must read the following topics-
Current Affairs Questions, Indian History Questions, General Science, National and international current affairs, Indian culture and heritage, The Constitution of India, Geography of India and all India Gk Questions.