How to change Mobile number on GST Portal

How can i change Mobile Number mentioned under "Authorised Signatory" on GST Portal as it dosent allow any editing.

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Quick Summary
This discussion addresses the challenge of changing a mobile number listed under the 'Authorised Signatory' on the GST portal, particularly for companies. While proprietors can update details via a letter and partnership firms use 'non-core amendment', companies find the 'non-core amendment' option doesn't allow mobile number changes. The advice suggests companies may need to follow a specific procedure for this type of amendment.

If you are a proprietor then you have to write a letter to the gst department and get the number, address changed. If you are a partnership firm then you can change the number under " changes in non core ammendment".

We are a Company and i tried under "non Core Amendment' but it does not let me change the mobile number.

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