I was using Aircel network for around 4 years. It had good network in the initial stage but gradually it decreased if I moved to any other places. It had good network only in some areas. The network became worst some months ago. Call couldnt be placed properly and the internet speed was just damn irritating. And the worst part was, aircel didnt upgrade to 3g/4g. Customer service is very bad, didnt help me out with any of my network issues. So I had to switch my network