sorry I hate to be that guy but its not non-challan, its nonchalant. I was confused for a minute their by what non-challan meant ... i was thinking tthat maybe it is related to https://en.wiktionary.org/wiki/challan
I got stuck on that sentence too. I think it is the lack of quotes around the “we will make an original series out of it and sell it to a streaming service”-bit following it that stopped me from seeing 'non-challan' as a mistyped 'nonchalant'.