Thanks henry and wwalker,
For some reason blog.quickbreach.io was not accessible from my network. But I managed to configure Privacyidea server and ADFS.
My owa page now comes up with ADFS page and then requesting for OTP, but keeps on getting login failed even with correct OTP from privacyidea android app. When I test OTP on privacyidea server it can successfully verify OTP. Not sure why ADFS is not able to verify OTP. Please help.