The Terai or Tarai is a lowland region in northern India and southern Nepal that lies south of the outer foothills of the Himalayas, the Sivalik Hills, and north of the Indo-Gangetic Plain. This lowland belt is characterised by tall grasslands, scrub savannah, sal forests and clay rich swamps.
Tarai, also spelled Terai, region of northern India and southern Nepal running parallel to the lower ranges of the Himalayas. A strip of undulating former marshland, it stretches from the Yamuna River in the west to the Brahmaputra River in the east.The Terai region is a haven for wildlife.