Hi I am just bought a airtel 3g simcard from airtel showroom.the card cost me 130rs.with 250mb 3g internet for 30days and 60minitues calling free I am very comfotable with this.the network of airtel sim is everywhere so I can call from anywhere of india.now its calling charge is bit extra so that I can not give airtel 5stars also its coustomare care is also not good because they were holding my cal for more time.but the main thing is that the internet connection is so good and I realy like it and I also recomended airtel to impore the coustomare care service so that I can give airtel 5 stars