I have a Lumia 820 purchased from Dubai. I live in India, and I was wondering if i'll receive Black+GDR3 update along with other Indian 820s or I would have to wait until Dubai releases those updates.
Since you purchased it from Dubai, you probably have the UAE country variant ROM. You will have to wait until the update is released in Dubai.
unsure of what will happen in ur case. let us know, to update our knowledge.
I'm not 100% sure. But that is what makes sense to me. If you go to extras+info, and tap on 'more info', you probably have im_mea instead of im_india under manufacturer. I believe this will be used to determine whether the update is available for your phone or not. Again, I'm not 100% sure.