All seven are currently in detention.
In a statement today, the government named three people who it said actually carried out the killing.
The blogger, Yameen Rasheed, was found stabbed near his apartment on April 23. He died later in a hospital. He was a critic of politicians and of rising radical Islamic views in the Indian Ocean archipelago.
He also was seeking justice for his friend, journalist Ahmed Rilwan, who has been missing for nearly three years after being reportedly abducted.
Disclaimer: No Business Standard Journalist was involved in creation of this content