PATUAKHALI: Substandard materials are allegedly being used in the repairing works of Mirzaganj- Betagi Road. New Nation Published: 12:00 AM, 08 October 2016 Updated: 5:38 PM, 24 September 2022 PATUAKHALI: Substandard materials are allegedly being used in the repairing works of Mirzaganj- Betagi Road. .