Pls tell me solution
This is a modification done by Google since the start of lockdown. You won't be able to steam in hd on a mobile data connection. You can stream hd when connected to WiFi.
This is done by Google and applicable to all phones in India, and not limited to Nokia phones. You can temporarily bypass it by connecting to a VPN network of any other country.
I tried my friend mobile hotspot still not showing high resolution
You should set the Hotspot to non-metered connection on your phone and then it should work. Metered WiFi connections will be treated the same way since the aim of this activity is to reduce the mobile data consumption on the phones and eventually reduce the load on the core network setup.
Starting from V15.42.36 ,You can set the playback quality to 720p or higher on Metered Connection and on my Nokia 3.2 here is the screenshot
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