We all knew it was coming.
They said if they were elected to power, they would appoint a deputy speaker from the opposition, and require the speaker and deputy speaker of the house to resign from their party positions. The reason for this was to make parliament effective. Opposition support is important when legislating, to make sure everyone's interests are met.
The Awami League-led parliament appointed loyalists for both positions, though, and made no such requirement on resignation from party posts.
After doing this, they then announced that they would amend the constitution, to allow for two deputy speakers. The second one will be from the opposition. With reassurances, that the two deputy speakers would have equal rights and privileges.
Bangladeshi taxpayers, who can barely afford to pay for half of the annual development plan to build infrastructure in the country (foreign aid pays for the other half), will now be paying for salaries, and extensive government benefits for two deputy speakers where only one was sufficient.
The first rule of government spending: why pay for one, when you can have two for twice the price?
If there's anything a corrupt third-world democracy loves to do, it's breaking election pledges, and amending the constitution. Mmm-mmm, nothing like the smell of amended constitution in the morning.