My Daughter's weight is not as per her age. she is 15 months old and weights 7.5 kg. what intake should be given to her for ideal weight

A. Ideal weight of a 15 months old baby girl should be between 9 to 11 kgs depending on birth weight and eating habits. To help her gain weight, include fat and protein rich foods like rice, potato, pumpkin, sweet potato, legumes, ghee, milkshakes with dry fruits, eggs, chicken, banana, avocado and 550-600 ml milk everyday. Feed 3 main meals and 2-3 times healthy snacks alongwith variety of fluids.