To obtain Wireless Planning & Coordination (WPC) approval for a wireless keyboard, you will need to ensure that your device complies with the WPC's standards for wireless communication.

As the device uses radio frequency (RF) signals to communicate wirelessly, you will need to apply for WPC Type Approval. This requires submitting an application and required documents to the WPC, including a technical description of the device, test reports, and a copy of the user manual.

The WPC has different categories for radio frequency devices, and your wireless keyboard will likely fall under the "low power device" category. Once your application is approved, you will need to obtain a frequency allocation from the WPC. This ensures that your device operates on an assigned frequency that does not interfere with other wireless devices.

It is important to note that WPC approval is mandatory for all wireless devices that operate in India. Failure to obtain WPC approval can result in fines or legal penalties. Therefore, it is important to ensure that your device complies with the WPC regulations and undergoes the necessary testing and approval process before you begin marketing or selling your product in India.