I am not yet very much sure whether it is Amber update over OTA or something else since it is currently getting download on my Lumia 920. I will update here upon installation of the update. Here is the screenshot i just took:
Yep, the country variant of the 920 in India is getting the Amber/GDR2 update today. Lucky you! Be sure to check the Windows Phone store after the update for the Nokia Pro cam app.