This is to beware you that don't go for airtel mobile service in at least Himachal Pradesh circle. Six months ago I subscribed a postpaid connection from airtel. Since then I'm receiving promotions calls from them. I requested number of times to Airtel customer care and they didn't reacted at all. I believe they do not understand a simple word 'NO'. More soever in November 2007 they subscribe the tune themselves and charged Rs 200/- Plus for that. SO JUST BEWARE OF AIRTEL.