The workers were constructing a toilet at a school next to the temple in Faridpur’s Madhukhali Upazila
The 13-storied building, standing on 9.5-acres, cost Tk 1.1 billion.
She went to several floors and departments after opening it at around 3:30pm on Friday.
Hasina was accompanied by, among others, Health Minister AFM Ruhal Haque and junior Health Minister Mozibur Rahman Fakir.
She later addressed a gathering there.