Exams for various subordinate technical and non technical posts are conducted by Railway Recruitment Board. Generally, the exams comprise of Numerical Ability, General Awareness, General Intelligence, General Science and also, Technical Papers. Educational qualification varies according to the post applied for. Here, you can find comprehensive preparation material including mock tests, topic wise tests and previous year papers for RRB exams like JE, NTPC, RRB ALP, RRB Level-1, etc.