I haven't come across any news that most of vehicles in Bangladesh are with fake registration. Below car sales report is inline with registration record ….
Around 63 cars are sold in Bangladesh every day now – the highest in the country’s history – with the number of imported cars having increased threefold since the 2012-13 fiscal year. “Bangladesh imported around 11,476 cars in the last six months (July 2017- December 2017) to fulfil the growing public demand,” said Habib Ullah Dawn, president of the Bangladesh Reconditioned Vehicles Importers and Dealers Association (Barvida). According to the Barvida, around 7,353 reconditioned cars were sold in FY2012-13, and 20,149 cars were sold in FY2016-17. Why are car sales increasing in Bangladesh? Car importers, vendors and banks say there has been a big jump in the purchasing capacity of the middle class as well as an emergence of easier credit facilities. The lack of standard public transport in Dhaka and the affordable price of cars are also reasons for the boost, according to car importers. “We are amazed that 11,476 cars were sold in just the last six months,” said Md Habib Ullah Dawn. “However, if the political situation gets ugly in the wake of the upcoming national elections at the end of this year, sales might fall again,” he added.
https://www.dhakatribune.com/business/2018/02/21/car-sales-triple-five-years