Bans and boycotts: The troubled history of Bangladesh’s elections

There is widespread concern that this year's elections in Bangladesh will be rigged [Mahmud Hossain Opu/Al Jazeera]

On Sunday, Bangladesh, a nation of 170 million people, will go to the polls to elect a new government in the country’s 12th general election.

But in a country with a chequered history of violence and protests against dubious polls, the vote is already courting controversy.