ACC sought information under Article 48 of the United Nations Convention against Corruption
Seeking details of the gamblers, including their passport numbers, the commission wrote to the Corrupt Practices Investigation Bureau of Singapore on October 29.
The anti-graft watchdog official ANM Al Firoz, who signed the letter, confirmed the matter on Friday.
ACC has sought information under Article 48 of the United Nations Convention against Corruption (UNCAC), of which both Bangladesh and Singapore are parties, he said.
"An investigation found that a number of people have laundered their illegal money to different countries, including Singapore," Firoz said.
Those who were arrested confessed to have played in Singapore casinos and siphoned off huge amount of money to the country, he added.
ACC wants to conduct an investigation into the wealth of Bangladeshis, who played in the casinos there.
The move came as part of an ongoing anti-corruption campaign which began across Bangladesh in September, Several people, including some Awami League leaders, have been arrested over the charges of running illegal casinos in the country.
Following the matter, the Bangladesh Bank also issued several notices, to freeze the bank accounts of some of the accused and their family members.