How i know My 9 digit CAS Number for Zerodha?

General
1

Hi,
I need to subscribe to E-CAS and update my mail id in This link https://nsdlcas.nsdl.com/
Any one know that ? I can’t able to find
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2

Are you sure your depository is NSDL? For Zerodha users its usually CDSL, except for some exceptions.