Important guidelines for RRB NTPC Exam 2021 • Wearing Masks: Candidates will be required to wear masks while taking the exam. • Social distancing: Following the guidelines issued by the Government of India, candidates must maintain social distancing. • Sanitization: The exam center will be properly disinfected after the completion of each exam shift. • Admission card: The examining authority will scan the admission card through the barcode available on it. https://www.examhelp.in/news/rrb-ntpc-admit-card-2021-released/