Officers carried out the arrest as part of their investigation into a suspicious fire at the Sikh temple in Sheriff Brae during the early hours of Tuesday 28th August.
The temple was targeted by a molotov cocktail around 5am on Tuesday morning.
Firefighters quickly responded and doused the flames, but the fire had already ravaged the entrance and rooms within the building have been severely smoke damaged.
The leader of a Sikh temple damaged in a petrol bomb attack in Edinburgh says the community has been stunned and frightened by the incident.
The Gurdwara is situated in a former church and has been used by the Sikh community for nearly 50 years. It is the only Sikh centre in the Scottish capital, serving a community of more than 500 people.