Longding district (Pron:/lɒŋˈdɪŋ/) is one of the 20 administrative districts of Arunachal Pradesh in northeastern India. It was carved out of the south-western portion of the Tirap District. The district shares its boundary to the south and south-east with Myanmar. Its boundary to the west and the north are shared with the Indian states of Nagaland and Assam, respectively. Towards the northeast is the Tirap District from which the district was carved out in 2012. The district has a population of around 60000 and an area of roughly 1200 square kilometers. Longding has a pleasant climate throughout the year. Due to its hilly terrain, the temperature ranges from 15C (in winter) to 30C in summers).[1]