<prompt> To define obesity on the basis of BMI, it should be-20303540  <response>: Ans. is b i.e., 30 ClassificationBMI kgm2 Global population WHO internationalIndian populationGrade III severe underweight 16 Grade II moderate underweight16?0 - 16?9 Grade I mild underweight17?0- 18?49 18?5 18?5Normal18?5 - 24?9918?5-22?99Overweight Pre-obese25-29?9923 - 24?99Obesity:3025 Class I30?00 - 34?99 Class II35?00 - 39?99 Class III 40?00 