A primary bank account is the main bank account linked to your Zerodha account. The bank proof you submit while opening your trading and demat account is linked as your primary bank account. You can use your primary bank account for both depositing and withdrawing funds to and from your trading account. You can also
change your primary bank account through Console.
You can add up to 3 bank accounts to your trading account, but only 1
will be treated as the primary, and the other 2 as
secondary.
Did you know? PayTM payments bank cannot be linked to a Zerodha account.