How to increase weight..wat r the foods to eat which are having more fat.?

Gain muscle: If you are weak, you may be able to gain weight and strength by gaining muscle by eating high quality food with sufficient protein and doing mild resistive exercises and walking for 10 to 15 minutes 4-6 times a day, gradually increasing to 30 minutes twice a day if more convenient. Be sure to take sufficient vitamin d.

Protein before fat: Are u trying to gain weight for strength, for health? I would favor proteins over fat. This should be coupled with increased exercie to bulk-up your muscles. This will make you bigger and stronger but healthier thean just eating fat. Most likely you will consume sufficient fat in the process of increasing your protein. Breads, rice , legumes, soy all high in protein. If not vegetarian, meat.

High carbs/protein: Eat foods high in calories, eat more protein and fat. Milk and dairy products, cheese ice-cream etc. Peanut butter is good, eggs. Eat multiple meals during day. Figure your BMR and consume more calories than this. Resistance exercise i.E weights. Drink protein shakes-papya juice plus protein plus ice-cream plus few eggs in blender daily. Watch weight increase than.

Depends: Not sure why you are seeking to put on weight , but if neccessary then would target high carbohydrates and protien containing foods. High fats can be harmful to your health. Pasta , potatoes, protien shakes, ensure or boost drink. The pasta is best if its whole wheat pasta and potatoes if its not the standard " white " potato.