I took Oath at 2pm (Nov 06), saw my status "Complete" on Nov 07 morning. Went there at passport office around 11am and they accepted my application. In nutshell, they accepted passport application less than 24 hours after Oath ceremony. Citizenship Judge announced in ceremony, you can apply for passport on Nov 08.
Just sharing so that if anyone want to apply for passport early, he/she can go to passport office as soon as status change from decision made to "Completed".
Thanks & Good luck everyone.. !
If there is someone who needs a passport urgently, they can request a manual check on their citizenship certificate even if it doesn't show up in their system. They have a way of verifying it. I won't recommend using this method if you can wait until it shows "Complete". But yeah, it's not necessary that you wait exactly 2 days. You can go earlier or even right after your ceremony.