I am using Aircel Sim from past 2 years and I see Network Coverage is the main problem faced by me. aircel speed become worst after using 500 MB 3g data its speed down to 3.5 mbps to 700 bytes to 5kb I analyse this speed on IDM than downloading speed is 32 kbps on 3g data.
This same problem occurred with my friend he recharge of Rs 201 and after using approximately 500 MB his 3g net is not working. However, it is cheap in price but service of customer care is not good they do not solve the problem in better way.