I have not even been able to get the 40 mbps on VDSL - So, I am not going to trust Airtel, unless literally they show me a neighbour having it. I see from their website plans start at 799 - I already have Hathway which is going ok, so Airtel is my backup for now.
If you are asking how come Airtel Fiber is not there in my street - Not sure.