You seem to be insinuating that Jio is the only telecom that was given special all-India spectrum. And that is false. All the spectrum was offloaded in public auctions were everyone participated and bought spectrum.
Jio is not the only telecom in India with 4g spectrum or services. I personally use Airtel, and I get 4g everywhere I go without issues.
>I'm super curious what technical reasons mandate that there can be only one 4G license in a country with 1.4 billion people.
The confusion you have seems to stem from the fact that Jio advertises itself as India's only full 4g network. What that means is that the greenfield network build by Jio only uses and supports 4g networks and not the older 2g and 3g networks. So in other words, the Jio network is 4g exclusive for it's customers.
The older telecom are older and still operate old 2g and 3g networks so they cannot market themselves that way
Jio is not the only telecom in India with 4g spectrum or services. I personally use Airtel, and I get 4g everywhere I go without issues.
>I'm super curious what technical reasons mandate that there can be only one 4G license in a country with 1.4 billion people.
The confusion you have seems to stem from the fact that Jio advertises itself as India's only full 4g network. What that means is that the greenfield network build by Jio only uses and supports 4g networks and not the older 2g and 3g networks. So in other words, the Jio network is 4g exclusive for it's customers.
The older telecom are older and still operate old 2g and 3g networks so they cannot market themselves that way