The correct answer is Trans Himalaya.Trans Himalayas:The Transhimalaya is a 1,600-kilometre-long (990 mi) mountain range, extending in a west‚¬œeast direction parallel to the main Himalayan range.It is located north of Himadri and the Yarlung Tsangpo river on the southern edge of the Tibetan Plateau.The Zaskar range, the Ladakh range, the Kailash and the Karakoram is the main ranges.The Trans-Himalayas, mainly composed of granites and volcanic rocksUnlike the main Himalayas, the mountains are not divided by deep river gorges and lack a definite alignment.Additional InformationGreater Himalayas:it is also known as Inner Himalaya, Central Himalaya or Himadri.This mountain range boasts of the tallest peaks in the world, most of which remain under perpetual snow.Important Peaks are Mt. Everest, Kanchenjunga, Makalu, Dhaulagiri, Mansalu, Nanga Parbat, Annapurna, Nanda Devi, Namcha Barwa, KametSome of the important passes include Zojila Pass (which connects Srinagar and Leh), Shipki La Pass, Burzil Pass, Nathu La Pass etcImportant glaciers include the Rongbuk glacier, Gangotri, Zemu etcShiwalik RangeIt is also known as Outer Himalayas.It is located in between the Great Plains and Lesser Himalayas.The southern slopes are steep while the northern slopes are gentle.The width of the Shiwaliks varies west to east i.e. from 50 km in Himachal Pradesh to less than 15 km in Arunachal Pradesh.They are occupied by the valley of the Tista River and Raidak River.Lesser HimalayasThe lesser Himalayas are also called Middle Himalayas.They extend from the northwest of the northern limit of the Indian Subcontinent to the southwest of the same.Sandwiched between Great Himalayas and Shivalik ranges, the lesser Himalayas run for around 2500 km.Important ranges are Dhauladhar,Pirpanjal,Nagatibba,Mussorie and Mahabharat rangeSouthern slopes are steep while northern is difficult.