Good news! To place an IPO application bid through Upstox you can use the UPI ID linked to any of the banks that currently supports UPI ASBA.
The bank doesn't necessarily have to be registered as a primary or secondary account with Upstox. However, you must be an account holder in the bank account linked to the UPI ID you intend to use for IPO applications.
Here’s how you can apply for an IPO on Upstox.
Keep in mind: In case you are not an account holder, you cannot use the UPI ID of a bank account of a friend or a family member.