Explanation:

 Shimla apple is a broad term used to describe many different varieties of Malus domestica, but all originate from the same apple-producing region of northern India. Shimla is a region within the state of Himachal Pradesh in the Himalayan foothills. Each Shimla orchard produces apples several thousand feet above sea level, growing the fruit on small plots of flat land or terraces. The average apple yield in Shimla is approximately 500,000 metric tonnes. The apple industry, along with the rest of its horticulture, is a core part of Shimla's economy.