A Sunamganj court has granted a five-day remand for Akash Das, who was accused of disrespecting the Quran in Dowarabazar upazila.
Senior Judicial Magistrate Nirjan Kumar Mitra issued the remand order on Sunday.
Court Inspector Akbar Hossain confirmed the matter.
At least a couple of temples were reportedly ransacked, and numerous homes and shops belonging to Hindus were vandalized in Manglargaon, a remote village in Dowarabazar upazila of Sunamganj, following a Facebook post on Tuesday night, locals say.
Dowarabazar police station Officer-in-Charge Zahidul Haque said 21-year-old Hindu youth, Akash Das, had posted a photo on Facebook that had apparently offended religious sentiments, according to media reports.
As protests broke out, the man had been detained for his own safety, the OC said.
The situation was brought under control after army personnel intervened, supported by local leaders and religious representatives.
The mob also attacked the Loknath temple in the area, with valuables worth over Tk15 lakh reportedly stolen, according to Khokan Roy, general secretary of the temple in Sunamganj.