I am from Kolkata(CIT Road- Park Circus area.pin code 700014).I am using Airtel broadband for many many years, connectivity is stable and more or less reliable, but recently as I found out that the people responsible are far from reliable. Say speed according to your bill plan is 8 mbps but if you dont check your speed from time to time AIRTEL takes advantage of your naivety and discreetly reduces your allocated speed to
2 mbps . So that it can allocate that bandwidth to some new subscriber. When you complain they say its a software glitch and revert you to your previous speed ie, 8 mbps.
Seems unbelievable.but trust me it has happened with me so be careful and frequently check your speed by visiting any speed test website such as speedtest.net or speedtest.in. Otherwise you wont get the speed you are paying for.