sir my son is 5yrs old,his wt. is 15 kg what should I do for wt gain

A. dear parent, for healthy weight gain of your 5 years old child, give a homemade balanced diet having variety of food groups. grains and millets 4 servings pulses legumes/egg non veg: 1-2 servings seasonal vegetables including green leafy vegetables: 1.5 serving fruits - 1 serving milk and milk products 500ml sugar 4 tsp oil 5 tsp control intake of processed and packaged foods.