A few cities have started banning the mobile game PUBG because the administrators believe that it is detrimental to children. 

However, they have yet to figure out a way to effect the ban in the first place. 

Civic administrations neither have the authority nor resources to effect such ban, so issuing mere notifications is just a notional attempt at solving the issue.

The only way mobile games can be banned is by impressing upon the need of it and then effecting a Central Government directive to all telecom service providers to ban the traffic from the game’s servers to and fro from India.