The Bangladesh Telecommunication Regulatory Commission (BTRC) has lifted the restriction on adding unused data to a package that was bought before its end date. No matter how much data a customer has, they can now keep it and use it.
This cap was taken away completely when the BTRC updated the “Guidelines for Data and Data Packages of Mobile Phone Operators-2023.” From October 15, the commission told cell operators to stop offering three-day and fifteen-day data plans. Also, customers can no longer carry over more than 50 GB of unused data when they buy the same data plan. Also, operators have been told to cut the number of deals they offer to customers from 95 to 40.
Source: https://www.thedailystar.net/business/news/mobile-users-can-now-carry-forward-any-amount-unused-data-3514461