Mobile Network Standby Battery Drain

This mobile network standby is draining the most of the battery than any other usage I have done.. Its not fair.. Please tell us some solutions about it.. I have never faced this kind of issue earlier when I had noughat version mobile... Seems like this problem came after oreo.. Please help me..
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Comments
@Anders_ASUS
See this is the problem for network reception and see how much battery is draining for network.
@Anders_ASUS and ALL MODERATORS
WTH is going on... I hardly used my mobile since yesterday and still I'm at 19% battery and mobile network standby use almost half of my battery for no reason... Its not like I'm in rural area or something... I live in a metro city in India n still it is using so much power for network... Please get back to me... Atleast reply on the latest update on this... I have been trying so hard to show you the seriousness of this problem and you guys doesn't do anything about it... Please give me a reply on this.........
Go to developer option
In that there is option "mobile data always active"
Turn of that.
And your problem should get resolved
It is off... It's been off... Doesn't matter to it...