// It will probably go the same way as Esperanto.//
Nope it is out there - Esperanto and Volapuk arent.
used in business - Hindi is indo-european ( unlike Arabic and Chinese) so analysis should be straighforward. A bit like Spangleesh and Itanyol
Itanyol is the Italian-Spanish hybrid
so instead of earnestly asking over and over - "why we need dis den?" let us wonder if the kind of Hinglish varies with social status ....
yes it does apparently
https://www.sciencedirect.com/science/article/pii/S1877042815034886