Dear people, I had always used one sim card as there was only one sim slot in my mobile and I suffered a lot with that particular network service provider company, but later on when I lost my mobile(Samsung Google Nexus) I bought Sony Xperia with two sim slots in it, many of my friends suggested me to use idea network and I did that and learnt that idea is the best network provider in our country with wide coverage and high speed internet, rates are very reasonable and afforadable for every one. I always had one thing in my mind that all the network companies are same, just endorsement and improper services. hatts off to the customer care for their rapid action.