my baby is under weat what I do

A. To help baby gain healthy weight, include fat and protein rich foods like potato, rice, pumpkin, sweet potato, eggs, chicken, fish, legumes, ghee, milkshakes with dry fruits, banana, avocado, paneer and 600-700 ml milk everyday. Feed 3 main meals and 2-3 times healthy snacks including variety of fluids like water, fresh juices, curd, buttermilk and coconut water.