Aircel mobile operator is one of the worst network I ever used, it’s bucket completely filled with roaming or No signal problems, even many time in same part of the city they make me frustrate with this thing. In case of emergency don’t even think to rely on the network of Aircel, it’ll be a dumb move.
I can’t even do proper voice calling over this network and have to walk place to place for getting some required range of network. It’s a mistake to go further with that and thanks to Network portability I’m finally out of this rid.