All these mid budget manufacturers don't make TV themselves, they just rebrand already available products in their name from manufacturers like Changhong, Hisense etc. like
Vu Cinema TV sells as Changhong U43H7Ki in rest of the world mainly China and Pakistan.
Vu Premium Android 2018 sells as Hisense H8E in rest of the world
Realme TV that is launching is also a TV from Changhong that would be rebranded to sell as Realme TV in India
Motorola and Nokia TV's are probably developed by Marq that is Flipkart's own brand and are just sold under Motorola and Nokia's name for publicity