Today I am sharing very important and useful USSD (Unstructured Supplementary Service Data) and SMS (Short Messaging Service) codes of main networks of India like Aircel, Airtel, BSNL, Idea, Reliance, Tata DoCoMo and Vodafone. Sometimes all of us need a USSD code and there are so many USSD codes that we can't memories all, so guys I am simply putting all at one place so that whenever you want, you can simply checkout my blog and use these USSD codes.