On the back of Jio Fiber's Set-Top Box . Their is an RF Cable Section. You can see it.It DOESN'T depend on any local cable operator (LCO). Jio has been testing IPTV services which doesn't require coaxial connectivity.
No one needs to contact anyone. The service is in test phase as mentioned in this thread N number of times. Once the roll out is complete, everyone will get it without any manual efforts.
If you have less or no knowledge about something, please refrain from commenting. That way the community members doesn't get any misleading information.