Candidates had to upload their scanned pictures of photograph and signature as per the structure and SC/ST candidates were being necessary to add the classification certificates The bare minimum qualification demanded may differ according to the write-up. Seek advice from Annexure A of your in depth notification for particular prerequisites. https://edwinuzbbx.bloggosite.com/38986510/railway-recruitment-kolkata-rrb-group-d-32000-vacancy-pdf