Lemon, (Citrus × limon), small tree or spreading bush of the rue family (Rutaceae) and its edible fruit. Lemon as they are called in India, ‘Nimbu,’ are famous for their refreshing and sour flavour, improving the taste of almost any dish and is an integral part of a variety of Indian cuisines.

The distinctive astringent flavour of the fruit, either fresh or preserved, is also used to enhance many poultry, fish, and vegetable dishes worldwide. Lemon is used for culinary and non-culinary purposes throughout the world, primarily for its juice, which has both culinary and cleaning uses. The pulp and rind are also used in cooking and baking. The juice of the lemon is about 5% to 6% citric acid, giving it a sour taste. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie.

The fruit has a variety of uses and is cultivated throughout the country. However, the Commercial production of lemons takes place in Maharashtra, Andhra Pradesh, Tamil Nadu, Gujrat, Rajasthan, and Bihar. Lemons are available in the markets throughout the year. India is the largest producer of Lemons in the world.