How is the national electoral register created?

Bangladesh, Voter List Act (Act No. 6 of 2009), in force as of 2018, [in Bengali], accessed 1 January 2019

6. (1) The Commission shall appoint a registration officer for the purpose of preparing, amending, re-examining and updating the voter list for every voter area or electoral area and may appoint necessary number of Assistant Registration Officers in this regard; and the same person may appoint registration officer or assistant registration officer for two or more voter area or constituency area. […]

11. (1) All the electoral rolls preserved in the computer database shall be updated in the prescribed manner, as per the schedule, from January 2 to January 31, every year […].

(Translated by Google)