The National Achievement Survey (NAS) is a national level large-scale assessment conducted to obtain information about the learning achievement of students of Classes 3, 5, 8 and 10 studying in State Govt. schools, Govt. Aided schools, Private Unaided and Central Govt. schools. NAS does not provide scores for individual student/school.

It is a national representative survey that provides a system level reflection on effectiveness of school education. NAS findings help compare the performance across the spectrum and across population which may serve as input to move in the desirable direction and areas for remedial interventions.