Leh and Ladakh — The Complete UPSC Base Article

This is a one-stop reference on Leh and Ladakh, covering every dimension UPSC has tested or is likely to test — geography and ecology, tribal identity, Article 370 and the Sixth Schedule, the India-China and India-Pakistan borders, Siachen, tunnels, and the economy.

UPSC rarely asks a question labelled "Ladakh." Instead, Ladakh appears inside broader themes: border management, Article 370, tribal rights, cold-desert ecology, India-China relations, and infrastructure. Whenever news breaks — a tunnel breakthrough, a border incident, a Sixth Schedule order, a wildlife or climate event — dock it back to the relevant chapter here.

Ladakh is a cold desert at an average altitude of 3,000–5,000 m, between the Karakoram Range (north) and the Great Himalayan Range (south). It lies in the Himalayas' rain shadow, receiving barely 100 mm of rain a year, yet glacial meltwater feeds green valleys of barley and apricot.

• Area & people: ~59,146 sq km (one of India's largest units by area) but only ~2.74 lakh people (2011). Two districts: Leh (mostly Buddhist) and Kargil (mostly Muslim), split by the Zanskar Range.
• Passes: Khardung La (Leh→Nubra→Siachen), Zojila (Kashmir→Kargil→Leh, snowbound ~6 months), Chang La (to Pangong Tso), Tanglang La (Leh-Manali highway).
• Rivers: the Indus enters India in Ladakh; tributaries Zanskar, Shyok, Nubra, Hanle. The Shyok runs near the Daulat Beg Oldie (DBO) airstrip — one of the world's highest — close to the Karakoram Pass and the LAC.
• Three lakes (frequent in Prelims): Pangong Tso — a 134-km endorheic, brackish lake, only ~one-third in India; Tso Moriri — a freshwater Ramsar site (~4,522 m), fully in India; Tso Kar — a salt lake, habitat of the black-necked crane.

Ladakh is a Trans-Himalayan cold desert — rocky, wind-blasted, with sparse alpine grasses and hardy herbs. Yet it supports remarkable wildlife.

• Hemis National Park (~4,400 sq km, upper Indus Valley) — India's largest national park and among the world's best places to spot the snow leopard; also brown bear, Tibetan wolf, and bharal (blue sheep).
• Changthang Wildlife Sanctuary (~4,000 sq km) — the Tibetan wild ass (kiang, the largest wild equid), Tibetan argali, chiru (source of shahtoosh), Tibetan gazelle, and the black-necked crane (Near Threatened) breeding around Tso Kar and Hanle.
• Karakoram Wildlife Sanctuary — near the Siachen region; Himalayan brown bear, ibex, snow leopard.

Fragility: soil takes centuries to form; a single tyre track can last decades. Climate change is accelerating glacial melt (Siachen, Drang Drung). Tourism (3+ lakh visitors a year) creates waste in a place with almost no natural decomposition. Roads, tunnels, military bases and solar farms bring benefits but fragment habitats — an acute development-vs-conservation tension, even as Ladakh aims to be India's first carbon-neutral UT.

Over 97% of Ladakh's people belong to Scheduled Tribes — the most tribal-dominant region in India proportionally. Tribes include Ladakhi Buddhists (Leh), Balti Muslims (Kargil), Dard/Brokpa (Dha-Hanu), the Changpa nomads (Changthang), Mon, Purigpa and Garra.

The Changpa (tested in Prelims 2014) are semi-nomadic pastoralists above 4,000 m who rear the Changthangi goat (Capra hircus), source of the world's finest Pashmina. They practise rotational grazing (an indigenous conservation system) and were declared a Scheduled Tribe in 1989. The India-China standoff since 2020 has cut them off from summer pastures near Demchok and Chumur.

Culture: deeply Tibetan-Buddhist — gompas like Hemis, Thiksey, Diskit, Lamayuru and the 11th-century Alchi (finest Indo-Tibetan art); the Hemis Festival honours Guru Padmasambhava. Kargil is largely Shia Muslim (Balti, Purigpa traditions).

The Leh–Kargil divide is geographic, religious and political: Leh welcomed separation from Kashmir; Kargil worried about losing Article 370 protections. Understanding this internal split is essential for Ladakh's governance questions.