The trial of the case will start from September 11. The accused includes a sacked army major Ziaul Haque who has been absconding since the case came up.
The US based Bangladeshi blogger Avijit Roy was hacked to death near Dhaka University in February 2015. His wife was also seriously injured in the attack but survived.
Avijit Roy was an atheist secular blogger and activist who wrote against religious extremism, superstition and orthodoxy.
His killing had led to a huge international uproar and domestic protest as it came amid a series of attacks and murder of bloggers in Bangladesh who wrote against religious extremism between 2013-16.