Now a days the price of airtel mobile operators are too high than others.they also dont inform u about ending ur promobalance or net pack.i have my 1gb net pack .i have download a 300mb file and the totally 1gb and my 13rupees main balance are gone.the customer care says that u have no net pack and I have used all of them.very bad customer service .only one reason to use airtel is its networks are available almost everywhere in india.otherwise they are worst.