airtel basically takes care of that. if they are saying 40mbps, you are close enough to get 40mbps. in my case, they were only offering 16mbps on vfiber till a few weeks ago. they upgraded wires and now they are offering 40mbps. some folks on the forum have mentioned that even 100mbps is offered over vfiber if the user is very close to their local hub.
I want to go for 100 mbps.But,unfortunately airtel and jio both are not available in my area.Also one question for you that why u went for airtel as jiofiber is offering for free,me assuming that jiofiber available in your area
i am not using airtel vfiber at my place. still on 4mbps adsl. only using it for landline and cctv. i use excitel for my primary connection. jio is not offering services in my area. they do have wiring going in front of my house though.