High End user have dedicated WiFi in their split level apartments, offices and on the road, they have 4G. Rest of India does not even need more than 3G. ISP will optimize their investments for what sells. At best you will get partial 4/5G coverage with bandwidth limited by backbone network. There may be an improvement of latency. I don't know where it will be used for.
High end users would be large corporates and such, not a regular subscriber who wants internet for Youtube and songs.
However gaming is going to become a big thing because of 5G. You will not need a high end smartphone or computer to play high end games for example. Cloud gaming is going to be the next big thing for consumers.