As of Friday, the death toll from the capsize rose to 27 with four more bodies recovered.
Sub-inspector of Banaripara Police Jasim Uddin filed the case against launch owner Yusuf Hawlader and its master Nayon Mia Friday afternoon, said Officer-in-charge of the police station Ziaul Ahsan.
He said: “We recovered 24 bodies until Thursday evening of which one was from another sunken boat. We first thought it was of a passenger of the launch but it was from a boat which had sunk in the same area.”
The launch was salvaged Thursday around 8:30am, nearly 21 hours after its capsize.