The Bihar Constable exam, which was earlier scheduled for January third week, was postponed to March. CSBC admit card: How to download Bihar Constable exam call letter Follow the steps given here to download your admit card: Step one: Go to official CSBC website: csbc.bih.nic.in. Step two: Click on the 'admit card' link provided on the homepage Step three: Enter your registration number and date of birth. Step Four: Submit and download your admit card. CSBC Bihar Constable exam centre list CSBC Bihar Constable exam centre list for first sitting CSBC Bihar Constable exam centre list for second sitting CSBC Bihar had announced 11,880 Constable vacancies with the Bihar Police in October last year. The application process for the same recruitment was completed by November and admit cards for the exam were released towards the end of December.