This video is owned by CBSE, as Assessment Administrator for NAS-2021, and is meant only for training purposes for Field Investigator. This is made available to the authorized functionaries for using it suitably for smooth conduct of NAS-2021 in the sampled school. The versions which are put up in the NAS Portal Logins are to be treated authentic training video for any capacity building programs to be conducted by the funcitonaries such as SNO, DNO, DLC, RO / CoE etc.