| Nimmu–Padum–Darcha road | |
|---|---|
Darcha-Padum road winding up to Shingo La, elev. 4,975m (16,322 ft) | |
| Major junctions | |
| North end | Nimmu, Ladakh |
| South end | Darcha, Himachal Pradesh |
| Location | |
| Country | India |
| States | Ladakh, Himachal Pradesh |
| Primary destinations | |
| Highway system | |
Nimmu–Padum–Darcha road (NPD road) or Zanskar Highway is a modern 2-lane 298 km long paved road between the Indian union territory of Ladakh and the state of Himachal Pradesh, passing through the region of Zanskar, which will become all-weather road once the under-construction Shunku La Tunnel is completed in 2028–29. It connects Nimmu in the Indus Valley to Padum, the capital of Zanskar, and to Darcha village in Lahul and Spiti. It provides an alternative to the Leh–Manali Highway in linking Ladakh with the rest of India. It was built by the Border Roads Organisation (BRO) of the Indian Army. The construction of road was completed in March 2024. The already completed Atal tunnel, and the under-construction unidirectional-twin-tube 4-lane Shingo La Tunnel, which is expected to be completed by 2027 will provide all weather connectivity and reduce the distance from Manali to Kargil by 522 km.
It is estimated that travel on this road will only take 10–12 hours to reach Leh from Manali, as opposed to the Leh-Manali highway taking almost 14–16 hours under good weather conditions. The road is strategic for the Indian Army as it is set back from the international border and can facilitate safe troop movements. The Nimmu-Padam Darcha road is just 298 km from Darcha in Himachal Pradesh.





The regions of Lahul (Lha yul) and Spiti (sPi ti) were earlier parts of Ladakh, but since 1684-1847 they were one by one removed from Ladakh. At the end of the Tibet–Ladakh–Mughal war (1679–1684 CE), Lahaul valley was separated from Ladakh by king Bidhi Singh of Chamba State who had sided with the Tibet-Mughal alliance. Following the end of the independent Kingdom of Ladakh (1842) and the Treaty of Amritsar (1846) between British East India Company and king Gulab Singh of Jammu and Kashmir princely state, Spiti valley too was officially separated from Ladakh by the British. In 1847, Lahaul and Spiti were formally added to the Kangra district of British Punjab by the British Raj, legally severing the ancient ties to Zanskar.
Nevertheless, Lahaulis fought for the defence of Ladakh and Zanskar during the Indo-Pakistani War of 1947–1948. Major Prithi Chand of Indian Army trekked over the Zoji La pass in winter to arrive in Leh before the Pakistan-backed raiders from Gilgit could.
In 1979, when Ladakh was divided into two districts by the state of Jammu and Kashmir, the predominantly Buddhist region of Zanskar was attached to the Muslim-majority Kargil district. Work on the stretch of the road between Nimmu and Padum, called the Chadar Road, was begun by the Jammu and Kashmir Public Works Department in the 1970s. But it was reportedly cancelled by a member of the Legislative Assembly from Srinagar to prevent linking of Zanskar with Leh. Due to linguistic and religious similarities between Tibeta Buddhist-majority Zanskar and Leh, the Muslim politicians of Kargil had apprehensions that Zanskar might eventually come under Leh district's jurisdiction. So, instead of the Chadar Road, a road between Kargil and Padum was constructed, keeping Padum and Zanskar valley cut off from the road access to Leh city and Lahaul and Spiti valleys.
Following the Kargil War in 1999, the unfinished Nimmu–Padum "Chadar Road" project was handed over to the Border Roads Organisation (BRO) for completion. The construction of a road along the Chadar trek (the frozen Zanskar River during winters) faced opposition from stakeholders, such as trekkers who believed it would destroy the area's wild, pristine environment. Furthermore, in 2007, the central government questioned the Jammu and Kashmir state government regarding the necessity of this project. Despite this, the Buddhist councillor of the Lingshed constituency defended the construction of road, arguing that its construction was a vital "right" for developing the region's remote and underdeveloped villages.
Between May 2014 and June 2017, a 38 km long rudimentary road on the Padum-Darcha section was first constructed from Ramjak in Lahaul to Kargyakh in Zanskar via the Shingo La. It was built by Tsultrim Chonjor (also called "Meme Chonjor"), a Buddhist retired government employee from Zanskar who funded the project himself with the help from local villagers.After failing to convince the government to construct the road, he decided to build it himself; he was subsequently awarded the Padma Shri in 2021 for his efforts.
On 20 June 2024, the Himachal Road Transport Corporation (HRTC) conducted a trial run of a bus service from Keylong in Lahaul to Padum. This is the first time that a public bus has traversed this route. The 37-seat bus took 9 hours for the journey. Commercial service during the summer months only, June to October, is expected to start after further formalities.
The northern terminus is located at Nimmu in Ladakh, about 35 km (22 mi) east of Leh. The distance from Nimmu via Padum to the southern terminus at Darcha in Himachal Pradesh is 297 km (185 mi). The road consists of three major sections: Nimmu – Padum, Padum – Shingo La, Shingo La – Darcha.
This section needs expansion. You can help by adding missing information. (May 2023) |
The total distance from Nimmu to Padum is 156 km (97 mi) on the proposed alignment. Only 15 km remained to be commissioned as of May 2023. This section covers the following towns/villages:
From Padum, the road runs south along the Tsarap Lingti Chu river up to Purne, a distance of 53 km (33 mi). At Purne, the road crosses the river and continues along the Kargiakh Chu, a left bank tributary of the Tsarap up to Lakhang Sumdo. This distance of 39 km (24 mi) has a gentle gradient. Thereafter, the road climbs steeply from 4,460 m (14,630 ft) up to the Shingo La pass at 5,091 m (16,703 ft), covering a distance of 10.5 km (6.5 mi). The total distance covered in this segment is 102.5 km (63.7 mi).
Shingo La Tunnel, also called the "Shinku La Tunnel", is under construction with the target completion date of August 2028.
The newly-surfaced road (as of Oct '21) continues from the Shingo La pass down to the Darcha terminus. The road descends on the right bank of the Jankar Nala through Ramjak to Zanskar Sumdo, which has a helipad. The Jankar Nala enters a short gorge about 100 ft (30 m) deep. On the sides of the gorge is a Buddhist shrine to the deity Palden Lhamo. The road crosses the gorge and runs along the left bank via Chikka and Rarik to meet the Leh-Manali Highway about 2 km before Darcha. This segment covers a distance of approximately 38 km (24 mi).

NPDR runs past the Hemis National Park. There are several ancient Buddhist monasteries (gompa), such as the Phuktal Monastery.
This road is also the route of famous winter-only Chadar trek (literally "ice sheet"), the 62 km long, 8 day (including acclimatization at Leh) snowy foot trek usually from mid-January and mid-February, which starts and ends at the motorable Shingra Koma, the trek goes to Tsomo Paldar & Tibb cave to Nerak, and then traverse back to Tsomo Paldar.
In the past, La dwags [Ladakh] sometimes included sBal ti yul (Baltistan); Zangs dkar [Zanskar]; Lahaul; Spiti; the Aksai Chin (Hin. Aksä'i cina; Ch. Akesai Qin); and mNga' ris [Ngari].
The Ladakhi chronicles state that the eldest son [of King Nyimagon], Pal-gyi-gön [Lhachen Palgyigon], received Ladakh and the Rudok area; the second son, Tra-shi-gön [Trashigon], Guge and Purang; while the third son, De-tsuk-gön [Detsukgon], was given Zanskar, Spiti and Lahul.
Ladak is divided politically between Maharaja Gulab Sing and the East-India Company. To the former belong all the northern districts, to the latter only the two southern districts of Lahul and Spiti.