Aerial view of Terai plains near Biratnagar, Nepal

The Terai (Hindi: तराई Nepali: तराइ) is a lowland region in southern Nepal and northern India that lies south of the outer foothills of the Himalayas, the Siwalik Hills, and north of the Indo-Gangetic Plain. This lowland belt is characterised by tall grasslands, scrub savannah, sal forests and clay rich swamps. In northern India, the Terai spreads from the Yamuna River eastward across Himachal Pradesh, Haryana, Uttarakhand, Uttar Pradesh and Bihar. The Terai is part the Terai-Duar savanna and grasslands ecoregion. The corresponding lowland region in West Bengal, Bangladesh, Bhutan and Assam in the Brahmaputra River basin is called 'Dooars'.[1]In Nepal, the Terai stretches over 33,998.8 km2 (13,127.0 sq mi), about 23.1% of Nepal's land area, and lies at an altitude of between 67 and 300 m (220 and 984 ft). The region comprises more than 50 wetlands. North of the Terai rises the Bhabhar, a narrow but continuous belt of forest about 8–12 km (5.0–7.5 mi) wide.[2]


In Hindi the region is called तराई, 'tarāī' meaning "foot-hill".[3] In Nepali, the region is called तराइ 'tarāi' meaning "the low-lying land, plain" and especially "the low-lying land at the foot of the Himālayas".[4] The region's name in Urdu is ترائي‬ 'tarāʼī' meaning "lands lying at the foot of a watershed" or "on the banks of a river; low ground flooded with water, valley, basin, marshy ground, marsh, swamp; meadow".[5]

Other Languages
বাংলা: তরাই
भोजपुरी: तराई
čeština: Teraje
Deutsch: Terai
español: Terai
Esperanto: Terajo
euskara: Terai ordokia
français: Terraï
Bahasa Indonesia: Terai
italiano: Terai
Кыргызча: Тераи
lietuvių: Terajai
मैथिली: तराई
नेपाली: तराई
norsk: Tarai
norsk nynorsk: Terai
ਪੰਜਾਬੀ: ਤਰਾਈ ਖੇਤਰ
پنجابی: ترائی
polski: Teraj
português: Terai
русский: Тераи
संस्कृतम्: तराई
Simple English: Terai
svenska: Terai
தமிழ்: தெராய்
українська: Тераї
中文: 德赖平原