7 hrs compulsory

No, most of the seniors are also not doing the full 9 hrs.

Is there any official email which says 9 hrs per day.

Where is infrastructure to support 9 hrs per day

Thankfully not yet. I go for just 2-3 hours.

My manager is forcing me to sit idle. Not giving me a client project but marked as a resource for some requirement. The only thing they ask is to take interviews, looks like for this they are keeping me in the project.