On ADDA, the Event once added cannot be deleted/removed.Event can be made inactive if not being done anymore, which can be again made active as and when required.
Please follow the steps below to move an active Event to Inactive:
Step 1: Log in to ADDA -->> Amenity & Event -->> Setup -->> Under Activity Tab, search for the Event and click on "Edit".
Step 2: Scroll down to the last and you will find "Activity event?", select the radio button as "Inactive" -->> Once done, click on "Update Event".