You can edit an IPO application in Kotak bank with the following details-
Login to the bank. On your account page click on 'More' and then on 'ASBA'
In the next screen, click on 'View Application Details' under Transaction on the left side menu.
Here you can search based on date of application or application number. Enter the date range of your IPO application and company name or enter your application number. Click on 'Search'.
Next, you will be provided with a list of IPOs eligible for revision. Check the box and click on 'Edit' next to it. You can only edit those IPOs where the bidding window is open.
Edit your IPO application and click on 'submit'.