Cognizant — Live interview

Hi,

I have received am email from cognizant talent acquisition team on June 23 at 05.22 am IST and the scheduled session time was June 23 08:20am IST that too with a subject saying "reminder for live session".

Few things to be noted here.
1. I have received the mail at 05.22 am ISTwhich is too late for me to check.
2. Luckily I was awake and I joined the session but the interviewer did not join.

Having said that, since it was late I missed attending the live session.
What might be the live session about? Did I miss checking something important.

Could anyone please give clarity and can I expect an offer letter shortly.

Regards