Any one received tax demand notice via post ??

Yes. I got it last week.

I too received it not sure what to do. I have already raised rectification request but still got it

I got it yesterday. It's only 1 page compared to the email pdf.

I can't confirm if anyone received tax demand notices via post. However, it's common to get them via email. If you have discrepancies, wait for TCS's instructions or raise a grievance.