my son aged 2 years 3 months is under weight n his height is also not upto the WHO standard what should l do to improve his height n weight?

A. dear mum, for healthy weight gain, a 2 years old child should be given all the foods that are prepared in the house give five meals this includes two healthy snacks give more than One Katori every time the meals should be wholesome having variety of food groups like grains, pulses/non veg vegetables green leafy vegetables fruits dairy products like curd, paneer, cheese. nuts like almonds, walnuts, cashew nuts, dry fruits like raisins, dates. control intake of high sugar, oil and salt containing food and beverages, processed and packaged foods.