Hello @ambharesh venkatraman ,
To be able to read and write files located on the host file system, there are a couple of things to check:
- the code which access the file system
- The bindingof the container
- Access to the file system folders
You can investigate the folder access inside the module with
sudo docker exec -i -t [the name of your azure iot edge module] /bin/bash
Please check out this blog post where a comparable situation is investigated.