<prompt> Based on WHO criteria, severe acute malnutrition is defined asWeight for age 1 standard detionWeight for height 1 standard detionWeight for age 2 standard detionWeight for age 3 standard detion  <response>: Growth cha used in India shows normal zone of weight for age, undernutrition below 2 SD and severely malnutrition zone below 3 SD ICDS growth cha based on WHO growth chas Uses of Growth Cha: - Growth monitoring tool Diagnostic tool for identifying high risk children Planning and policy making Educational tool Tool for action Evaluation of corrective measures and impact of a programme Tool for teaching Ref:- K Park 24th ed; pg num:- 582 