The Election Commission (EC) has instructed officials to file police complaints over any attempt to register Rohingya refugees as voters.
The latest wave of the Muslim refugees from neighbouring Myanmar was making authorities tense about dishonest attempts to enroll them in the voter list.
The EC has already held meetings with field-level officials from 30 Upazilas in Chittagong, Cox's Bazar, and Bandarban, the southeast districts bordering Myanmar, reports a news agency.
The officials have been given 'strict instructions' to prevent their enrolment as voters in the ongoing upgrade, said acting EC Secretary Helaluddin Ahmed.
The EC will write to the Local Government Division so that it warns representatives against issuing fake documents to Rohingyas, he said.
"There are allegations that Rohingyas get fake birth certificates from local government representatives. They get help in producing fake parents. Some dishonest politicians have been trying to use the refugees as voters and are putting pressure on election officials."
"Any person who tries to get Rohingyas into the voter list will be slapped with a criminal case. This is what we told our field officials," said additional EC secretary Mokhlesur Rahman.
The EC in 2008 scrapped 50,000 suspected Rohingyas from the voter list. Bangladesh has about 500,000 Rohingyas who have over a decade fled sectarian violence in Buddhist-majority Myanmar.