Please start "MOODLE" when you are bidding.
This is a just simple Moodle Plugin.
If you are a real expert it will take 12 hours or 1 day.
Must be a Moodle plugin
* Must allow an association with an assignment in Moodle
* Students must be able to enter a requested due date, reason for extension request, and
upload evidence to support the request. At least due date and reason must be mandatory
* Teacher should be able to approve or reject the request through the plugin, giving a reason if
the request is rejected
* Email notifications to teachers when a new request is entered by a student, and to students
when a request is approved or rejected
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You can refer this plugin.
I will provide the sketch if you selected.