India WPC (Wireless Planning & Coordination Wing) is an Indian regulatory agency that regulates wireless regulations. All wireless products must obtain WPC approval before entering the market. There are two types of frequency bands in India: free and unavailable. For free frequency bands, such equipment only needs to apply for an ETA (equipment type approval) certificate; for other frequency bands that are not free, you need to apply for a license. Both the ETA and the license holder must be a locally registered company. Based on CE R & TTE or FCC ID (Indian local standard), 2G / 3G / 4G requires mobile operators to apply.