RTI to CBSE on facial matching

The information sought herein relates to the face-matching system being used by the CBSE and the National e-Governance Division as one of the authentication mechanisms in the multi-factor authentication for providing digital marksheet to students. Please provide information in response to the following queries-

1. Please provide information with regard to how the facial matching system works to match faces including a step by step process of the working of the system.

2. Please provide information with regard to the source code of the facial matching system which has been developed using open source technologies.

3. Please provide information with regard to the accuracy rates of the facial matching system.