With Simple COD you are able to restrict which shipping options allow Cash on delivery as a payment in 2 clicks. Also you will be able to make it easier for users to add Delivery information by adding a dedicated Cash On Delivery form on the product page. This app is extremely easy to use and seamlessly integrates with your store's checkout to give your user an excellent experience.
Order form - Popup form + Upsell + Block Fake Orders Extension...
Collect Cash on Delivery (COD) confirmation fees in advance...
Use this app to confirm COD orders in Pakistan
Advanced COD verification + Charge a fee for COD orders