Comment on POA - Power of Attorney for your Demat account
‘For these purposes and to this extent’ refers to the above points where the document lists a specific set of powers given to Zerodha for the smooth operation of your demat account. Since the Zerodha demat account with member ID is mentioned above, I don’t see any ambiguity here. Additionally, changing this document isn’t possible as the format is prescribed by the depository itself, i.e., CDSL.