Hay everyone I have to tell adout Airtel I buy a airtel sim it was a 3g sim I think that it is a perfect sim for me but I was worng sim take 1 month to active and when my sim on then one and two days it loss it 3g covrage and when I talk in his service center and tell my Problem and he say that 3g service is on but no 3g service ison I am not happy with his service