For Bangladeshi nopCommerce users plugin for two popular payment modules are uploaded:
1. SSLCommerz Payment Module Supported Versions: nopCommerce 2.80 , nopCommerce 3.00 , nopCommerce 3.20 , nopCommerce 3.30 , nopCommerce 3.40
2. EasyPayWay Payment Module Supported Versions: nopCommerce 3.20 , nopCommerce 3.30 , nopCommerce 3.40
You all are welcome to review the plugins.