E-mandate , Can it be a bank account not associated with Zerodha

I have a question reagarding E-Mandate facility. Can this be a bank account not associated with Zerodha trading account. For ex I have ICICI bank associated but I need to have E-mandate from HDFC.
Is this possible ?

You can only add funds through e-Mandates using a mapped bank account. You need not change your primary bank account mapped with Zerodha. You can simply add a secondary bank account and create a mandate once the account is mapped. Check the process to add a secondary bank account below:
https://support.zerodha.com/category/your-zerodha-account/dp-id-and-bank-details/articles/how-do-i-add-a-secondary-bank-account