Can IPO bids be placed only through the UPI ID linked to the primary bank account at Zerodha?
In the case of individual accounts, any UPI ID in the applicant's name can be used to apply for IPOs. In the case of joint accounts, the applicant should be one of the bank account holders. UPI IDs of bank accounts where the applicant is not an account holder cannot be used to apply for an IPO.
The list of apps and banks that support UPI IPO applications can be checked by visiting
To know how to apply for IPOs, see
How to apply for an IPO and how to stay informed of new ones?