You can simply write to us on service.securities@kotak.com from your registered email address, stating that you have forgotten your username for www.kotaksecurities.com. Your username will be sent to your registered email address only.
Step 1. Click on Forgot User ID/ Nickname
Step 2. Fill in the appropriate details for your account and then click on Remind me my ID button
Step 3. Your nickname/ User ID will be sent to your registered mobile number