I have purchased Huawei Smartphone marketed by Idea, model number ID- 280. It supports high speed internet. Earlier I was using Airtel 3g Dongles, they have excellent speed of around 600 KB/sec but the plans are very expensive. Hence I want to switch to 2G GPRS service. I need around 4 GB usage in a month with decent download speed and can spend around 300-400 in a month. What operator can I choose for GPRS service provider? I am based in North Kolkata near Dumdum Sinthi Area. Any advice/inputs from pals will be great for me. Thanks in advance.