This article re-estimates the prevalence of child malnutrition among the under-five age group in eight north-east states using the composite index of anthropometric failure method as proposed by P Svedberg, using the National Family Health Survey-3 data. These data show that in the north-east only about 35% of children under-five are underweight. However, results using the CIAF method indicate a substantially higher malnutrition level of 56%, and evidence of wide interstate differentials by socio-economic and demographic indicators.