Hi Welcome to HealthcareMagic According to your height and weight, your Body Mass Index (BMI) is 15.8 which is considered as underweight. In order to increase your weight, your diet should be high in protein which helps to increase the muscle mass and stamina in the body. Eating foods rich in protein includes whole pulses, legumes, milk products, soya products, peanut butter, nuts and dry fruits.Take foods like fruit milkshakes,dry fruit milkshakes, lassi, buttermilk, whole milk , Flavoured milk, paneer, groundnut burfi, green banana and you can try using protein supplements like ENSURE or RESOURCE HIGH PROTEIN which can be taken along with milk twice daily. Try avoid taking junk foods like oily fried foods,highly saturated sweets and carbonated drinks which will eventually suppress your hunger. Here are a few tips to get you started: •Have an extra slice of whole-grain toast with peanut butter at breakfast. •Add extra cheese to an omelet. •Slice an apple and serve with almond butter. •Stir chopped nuts into plain yogurt and top with honey. •Serve yourself larger portions of starchy vegetables like potatoes and sweet corn. •Add calories with a nutritious beverage such as milk, 100% fruit juices, or vegetable juice. Hope this helps.