Based on my suggestion to a relative - asking them to replace frequently not working for days BSNL connection - with either Jio or Airtel lower plans, they decided to apply for Airtel - I got an update later, but the person who visited said why not go for Fiber as its good but only higher plans are there. They said they are looking for only 499 plan & he said you will get VDSL with a minimum of 16 mbps plan, max of 40 mbps. They still went ahead and BSNL has been a no-show for a while.
Not sure if they dont have fiber at 499 or they are simply trying to push higher plans