India's Department of Telecom has unveiled details of the planned auction of 3G spectrum. The government is offering blocks of 2x5Mhz in the 2100 MHz band under 20-year licences. Most circles will have five blocks available, while some areas, such as Delhi and Gujarat, will be limited to three licences. One block in each circle will be reserved for either BSNL or MTNL, the state-owned operators .