Bagaichhari Upazila in Rangamati has been flooded due to onrush of flood water from the upstream yesterday. New Nation Published: 12:00 AM, 19 August 2017 Updated: 12:38 AM, 25 September 2022 Bagaichhari Upazila in Rangamati has been flooded due to onrush of flood water from the upstream yesterday. .