National 0 1 min readPATUAKHALI: The dam at Nilganj Union is in risk due to high ebb of Andharmanik and Sonatola River. This picture was taken on Saturday. 18 Jul 2016, 12:00 am0PATUAKHALI: The dam at Nilganj Union is in risk due to high ebb of Andharmanik and Sonatola River. This picture was taken on Saturday. admin .