Answer: follow a balanced diet, which is a combination of healthy foods. Good milk production will help to gain weight of ur baby.
A balanced diet includes:
Starchy foods, such as rice, bread, potato (aloo), wholewheat rotis, oats (jaee), semolina (suji) and pasta. Choose wholegrain or multi-grain varieties of cereal-based starchy foods for added nutrients and fibre.
Some dairy produce, such as a glass of milk, curd (dahi) or yoghurt. Talk to your doctor about what to eat if you are lactose intolerant.
Some protein, such as lentils, pulses, eggs, fish and lean meat.
Plenty of fruit and vegetables.
In addition to this, you need the following nutrients:
Iron: Your doctor will prescribe an iron supplement to keep your iron levels up. But it's important to get iron from your diet as well. Vegetarian sources (called non-haem iron) include pulses, sprouts, dry fruits, and green leafy vegetables. Non-vegetarian sources (called haem iron) such as lean red meat, fish and poultry. Eggs are also a good source of iron.
Calcium: Eat at least three daily servings of calcium-rich foods such as milk and other dairy products, fish, dark green leafy vegetables, almonds, or calcium-fortified foods like cereals, juices, soy and rice beverages, and breads.
Vitamin D: sun exposure helps your body produce vitamin D, but many women don't get enough sun to make an adequate amount. Good sources are oily fish such as salmon (ravaas), mackerel (bangda) and sardines (pedvey). Red meat, egg yolks and fortified breakfast cereals also provide some vitamin D.
Vitamin C: It helps your body to absorb iron better. Citrus fruits, Indian gooseberry (amla), guava (amrood) and papaya (papita) are a good source of vitamin C.
Vitamin A: Carrots (gajar), eggs, sweet potato (shakarkandi), dark leafy greens, pumpkin (kaddu), red capsicum (laal shimla mirch), peas (matar), tomato (tamatar) and mango (aam) are rich in vitamin A.
You can also have a handful of nuts as a light snack.
If you must eat the laddoos or panjiri you can reduce the calorie count by eating smaller portions.