School children’s health status is related to future physical growth, intellectual capacity and income. But malnutrition at early stage among children affects on physical growth and intellectual capacity. Mumbai Metropolitan Region is most developed region of India. But the incidence of malnutrition among school children is higher in slums of region. The incidence of severe malnutrition among male is higher in Ghatkopar and among female, it is higher in Kalwa. Highest severe incidence of malnutrition is found among male and female of 6-8 age groups. The children of illiterate mothers have higher incidence of severe malnutrition. But the incidence of severe malnutrition among children is higher with father’s secondary education. The per capita income of the severe malnourished children is low. The logistic regression for female shows that the malnutrition is positively co-related to sex, purify water and it is negatively co-related to age, per capita income, per capita liters of water, bike and number of sons.