Tuesday, Aug 11, 2026 15:30 [IST]

Last Update: Tuesday, Aug 11, 2026 09:49 [IST]

Reviving the Trans-Himalayan Lifelines

SAGAR CHETTRI

Sikkim, Kalimpong, Nathu La, and Jelep La are famous mountain regions that once connected India and Tibet. Long ago, caravans, spiritual pilgrims, diverse cultures, and essential goods moved unhindered across these high-altitude passes, bridging the fertile plains of India with the plateaus of Tibet, Bhutan, and beyond.

During the British colonial administration, this commerce was formalized and expanded, transforming remote mountain trails into major conduits of international exchange. At the peak of this era, the picturesque hill town of Kalimpong in northern West Bengal, working alongside Darjeeling and Sikkim, served as the undisputed commercial heart of Indo-Tibet trade. Mule caravans laden with raw wool, yak tails, musk, and borax descended from the Chumbi Valley, crossed the border, and arrived in Kalimpong, where the commodities were sorted, packed into massive warehouses, and dispatched to Kolkata and global textile mills.

This booming trade transformed Kalimpong into a cosmopolitan hub filled with international merchants, muleteers, monks, and diplomats, bringing immense financial prosperity to the region. Tragically, this golden age was shattered by geopolitical disputes and military conflicts between India and China, culminating in the 1962 war. The sudden border closures brought an immediate halt to trans-Himalayan commerce, plunging the region into economic stagnation and causing deep, lingering losses for citizens on both sides.

The recent skirmishes between the two Asian giants in Pangong Tso, Galwan, and Doklam added insult to injury rather than healing old wounds. The situation was further complicated by the COVID-19 pandemic. For decades, the borderlands of Sikkim, Kalimpong, and Darjeeling suffered under a security-focused mindset that viewed geography as a threat rather than an asset. Yet the strategic location of these regions should instead be seen as a natural geopolitical advantage. Restricting the region out of strategic paranoia has long deprived local communities of opportunities to flourish through trade and commerce.

Recognizing the need to heal historical fractures and build bilateral confidence, India and China agreed to reopen the historic Nathu La pass for limited border trade. This marked a significant diplomatic step, transforming a flashpoint of conflict into an avenue for economic cooperation once again.

Trade through Nathu La operates under strict regulatory frameworks agreed upon by both nations, utilizing designated trading posts on either side of the border. Transactions are conducted on specified days of the week by registered traders from designated districts. India's export basket typically includes agricultural implements, blankets, copper items, bicycles, coffee, tea, barley, rice, flour, dry fruits, vegetables, edible oil, shoes, and local handicrafts. Imports from China and Tibet largely consist of raw wool, yak hair, sheepskin, goatskin, local butter, salt, borax, and traditional garments and artifacts.

Despite initial bureaucratic bottlenecks, limited commodity lists, and seasonal weather disruptions, the reopening of Nathu La has injected positive economic momentum into East Sikkim. Border communities have found new employment opportunities in transport, logistics, warehousing, hospitality, and retail services. The need to support trade has also driven improvements in national highways, telecommunication networks, and power infrastructure across the mountains.

For Sikkim, India's first fully organic state, cross-border trade presents an opportunity to export high-value organic produce, processed foods, and floriculture products directly to high-altitude regional markets.

While Nathu La has resumed partial operations, its sister pass, Jelep La, remains closed to civilian transit and trade despite being only a few kilometres away at an elevation of about 13,000 feet. Historically, Jelep La served as the primary pack-animal route connecting Kalimpong directly with the Chumbi Valley and Lhasa. It was preferred over Nathu La for bulk cargo because of its gentler gradients and more direct alignment with the Kalimpong valley floor.

Before 1962, thousands of mules crossed Jelep La every day. Today, however, the pass remains heavily militarized and inaccessible, while Nathu La functions primarily as a highway-connected trade post. Regional stakeholders, trade chambers, historians, and policymakers in both West Bengal and Sikkim have long advocated reopening Jelep La to create a direct commercial corridor from Kalimpong into the Chumbi Valley. Restoring trade through Jelep La would inject much-needed investment, revive local entrepreneurship, restore Kalimpong and Sikkim's historic role as international trading centres, and demonstrate greater strategic maturity between India and China.

It is time for local communities and businesses to push for longer trading hours, digital payment systems, and a broader list of tradable goods. Since large-scale trade still faces practical constraints, tourism authorities should also promote cultural exchanges and eco-tourism initiatives involving India, Bhutan, Nepal, and Tibet.

Experts have repeatedly warned about common Himalayan challenges such as melting glaciers, floods, and earthquakes. These shared environmental threats should become opportunities for cooperation through joint disaster management, weather information sharing, and environmental conservation, taking bilateral engagement beyond commerce alone.

Looking ahead, expanding trade, travel, and cultural exchanges through both Nathu La and Jelep La could transform the region. Achieving this vision will require policymakers to move beyond old security concerns and embrace carefully managed connectivity. Future negotiations should modernize cross-border trade by including electronics, machinery, medicines, and other contemporary goods alongside traditional commodities.

Allowing manufacturers in Kalimpong, Siliguri, and Gangtok to sell directly to Tibet would strengthen regional industries and create sustainable local businesses. Opening these routes to tourists and business visitors through modern visa facilities would generate significant economic growth. Most importantly, these mountain passes offer the shortest and safest route for Indian pilgrims travelling to Mount Kailash and Lake Mansarovar, sparing them the longer, more difficult, and more expensive journeys through alternative routes.

As Nathu La has already demonstrated, thoughtful diplomacy can restore peace, trade, and shared prosperity to the Eastern Himalayas. It is now time for both nations to broaden that vision and seriously consider reopening Jelep La as well.

(Sagar Chettri is an Advocate, Bar Association, Kalimpong. Views are personal. Email: sagachettri@gmail.com)

 

Sikkim at a Glance

  • Area: 7096 Sq Kms
  • Capital: Gangtok
  • Altitude: 5,840 ft
  • Population: 6.10 Lakhs
  • Topography: Hilly terrain elevation from 600 to over 28,509 ft above sea level
  • Climate:
  • Summer: Min- 13°C - Max 21°C
  • Winter: Min- 0.48°C - Max 13°C
  • Rainfall: 325 cms per annum
  • Language Spoken: Nepali, Bhutia, Lepcha, Tibetan, English, Hindi