I am using Airtel broadband connection since 6 months. I am having 999 plans. In this plan I supposed to get 512kbps speed. I have to pay 999 every month. Till yesterday I was getting 610kbps as download speed. But it surprised me that today I am getting speed of 2mbps. Around 250kbps is my download speed. I am not getting why my speed has upgraded. Can anybody suggest what could be the reason? I have not demanded for any speed plan. Are they going to charge for this at end of the month?.