I had used many networks like docomo and vodafone but I had a worst experience with AIRCEL mobile operator, when I bought its sim card they had a offer on their net prices so I activated the plan but I was shocked to see their net connectivity is the worst also when ever I travel in trains the network gets lost and roaming charges are applied, to My surprise when I complained about that to the service centre they said they will look into the matter it has been four months and I haven’t hear from them so I have decided to port to other network provider