The Wireless Planning & Coordination (WPC) in India manages the radio frequency spectrum and is responsible for issuing licenses and certifications for wireless products. The Equipment Type Approval (ETA) is a mandatory certification required by WPC for wireless products before they can be imported, sold, or used in India.

To obtain WPC ETA registration certification, follow these steps:

1. Product Testing and Certification Requirements: Understand the specific requirements and standards set by WPC for the type of wireless product you intend to import or sell in India.

2. Prepare Technical Documentation: Compile all necessary technical documents and information required for the certification process. This might include product specifications, circuit diagrams, user manuals, test reports, etc.

3. Apply for ETA: Submit an application for Equipment Type Approval to the Wireless Planning & Coordination Wing of the Ministry of Communications, Government of India. Applications are typically submitted online through the WPC portal.

4. Pay Fees and Submit Documents: Pay the required fees and upload all relevant technical documents and test reports as specified by WPC.

5. Testing and Verification: If needed, your product might undergo testing by an authorized laboratory or agency to ensure it complies with WPC standards.

6. ETA Issuance: Once the application is processed and the product is verified to meet the necessary standards, WPC will issue the Equipment Type Approval certification.

7. Compliance and Renewal: Ensure ongoing compliance with WPC regulations. The ETA certification might require renewal after a certain period. Maintain records and adhere to any changes in regulations.

Note: The specifics of the process, required documents, and standards might vary based on the type of wireless product being certified and any updates in WPC regulations. It's advisable to consult with a professional or a regulatory expert familiar with WPC requirements to ensure a smooth and accurate certification process.