Good morning Dr my second child is now 10months old she's very under weight now she's wt 7.2 kg born wt is 2.8kg wht should I do

A. Hello mom babies by the of 4 to 6 months they tend to double their birth weight and then the age of 1 year they tend to triple the birth weight . So try to enhance his meals by ghee , panner , steamed channa , rajma , milk can be used in some recipes, dry fruits and nuts , seasonal fruits and vegetables, cereals- oats. , rice , roti , millets like ragi