Railways exams

You can get a free test various in various platforms. On Shiksha you can get a free offical mock test ;

From this you can prepare for your upcoming exam.

Link https://www.shiksha.com/exams/rrb-group-d-exam-mocktest

Candidates after Class 12 can apply for RRB NTPC, Group D exams. The eligibility criteria for RRB NTPC Undergraduate post is that candidates must have passed Class 12. For Group D exam, candidates must have passed Class 10 (High School) and have National Apprenticeship Certificate (NAC) granted by National Council for Vocational Training. Candidates who have passed Class 10 and ITI are also eligible for the exam.

If you lose 1/3rd of your index finger on the right hand, then you will depend upon the specific medical standards formulated by the Railway Recruitment Board for the specific position for which you are applying. Generally speaking, all applicants are expected to have some standard level of physical fitness, including limbs functionalities. For most posts under C-2 medical standards, for example, candidates are expected to be fit in all respects. It is also wise to check the detailed medical standards by the RRB for your post and seek a medical assessment if need be. 

To prepare for RRB NTPC exam well, you need to first Understand the Syllabus. The subjects covered are General Awareness, Mathematics, and General Intelligence and Reasoning. For general awareness and mathematics, NCERT Textbooks are preferred. Create a Study Plan and allocate well enough time for each subject. Solve previous year question papers on regular intervals. Take as manyy mock tests as possible for better understanding. Identify your weak areas and focus on improving them.