From one bank account, how many IPO application can be submitted through net banking?

Bank to bank, the number of ASBA IPO applications per bank account varies. SBI, for example, allows 5 IPO applications per account. ICICI Bank however, only allows 1 IPO application.

Multiple applications may be accepted by the bank. It doesn't matter which name they are. These could be family members, friends, or anyone else's.

It is important to note that only one IPO application can be submitted per person. Technically, this means that you can submit 1 application per PAN number. If more than one application is submitted with the same PAN number it will result in all applications being canceled.
A bank account can be debited by an investor for up to x applications for an issue. The following number is allowed:

One bank account allows for multiple IPO applications