Gst cancellation applied now asking to submit clarifications

I applied for my gst account cancellation and recived below message, Now its asking for clearification but where to submit clearification. Not getting option in portal or do I have to submit in writtern paper to GST office. Please help

This mail is in reference to the Application for Cancellation of Registration & GST REG-16 filed by you vide Application Reference Number (ARN) AA3607180057805 dated 11/07/2018.

You have been served with a Notice vide Reference Number ZA360718005027M dated 2018-07-11 for Seeking clarification.
You are directed to submit your clarifications by 2018-07-20.
Your Application is liable for rejection, if no response is received by the stipulated date.
Please use the Reference No. to View/ Download/ Print the notice.

Please respond soon as I have less time

Login to the GST Portal with valid credentials.

2. Click Services > Registration> Application for Filing Clarifications command.
3.In the Reference No. of Notice field, enter the reference number specified on the notice which you have received for filing the clarifications. Or In the Application Reference Number (ARN) field, enter the application reference number received corresponding to the application submitted. Click the SEARCH button.

In the Modification in the Registration Application filedfield, select Yes or No.

In case of Yes:

a. Original application is available in editable mode for all those fields for which Notice has been issued. Edit the details and upload the additional documents wherever required.

In case of No:

a. In the Additional Information field, enter the additional information.