Yes, adding salt to boiling water is a standard practice when cooking Indian dishes like rice or vegetables. It seasons the food from the inside out and enhances its natural flavors.
Adding salt to boiling water serves several important purposes. Firstly, it seasons the food evenly as it cooks. When rice or vegetables are submerged in salted water, the salt penetrates the food, flavoring it throughout rather than just on the surface. This results in a more balanced and flavorful dish. Secondly, salt helps to enhance the natural flavors of the ingredients. It brings out the sweetness of vegetables and the subtle nutty flavor of rice. Thirdly, in the case of vegetables, salt can help to retain their color and texture during cooking. The salt helps to prevent the vegetables from becoming mushy or discolored. The amount of salt to add depends on the quantity of water and the type of food being cooked. A general guideline is to add about 1-2 teaspoons of salt per gallon of water. It's always best to taste the water and adjust the seasoning as needed.
When cooking rice, adding a small amount of oil along with the salt can prevent the grains from sticking together, resulting in fluffier rice.