00298nam a2200097Ia 4500008004100000020001800041100001000059245009600069260002700165300000800192190710s9999    xx            000 0 und d  a81-7450-460-5  aNCERT 0aSeventh all India school education survey : provisional statistics as on september 30, 2002  aNew DelhibNCERTc2005  a205