- Why in news
- A PIB backgrounder of 16 October 2026 describes India's push for safer inland navigation. It highlights the first riverine lighthouses on the Brahmaputra (National Waterway-2), hydrographic surveys and digital tools.
- What it is
- National Waterway-2 is the Brahmaputra stretch in Assam from Sadiya to Dhubri. It is the longest navigable stretch among Indian waterways and carries tea, coal and fertiliser cargo. It links to Bangladesh through the Indo-Bangladesh Protocol Route.
- NW-2 length
- NW-2 runs from Dhubri to Sadiya over 891 km of navigable length, the longest of any Indian waterway.
- Least Available Depth
- LAD is the minimum water depth available in a navigation channel for a stretch and period. It sets the permissible vessel draft and cargo capacity.
- Digital platforms
- PANI gives navigation and asset information on one portal. Naudarshika, the National River Traffic and Navigation System, was launched in 2025.
- NW-2 stretch
- NW-2 is the Brahmaputra from Sadiya to Dhubri, 891 km, declared a national waterway in 1988.
- Cargo and destination
- APCL methanol made at Namrup is bound for Pangaon Port in Bangladesh.
- Enabling facilities
- Customs and immigration complexes at Bogibeel and Dhubri made the shipment possible.
- Protocol history
- India and Bangladesh signed a river trade protocol in 1972.
- Waterway cargo growth
- Cargo on national waterways rose from 18 million tonnes in 2013-14 to 218 million tonnes in 2025-26.
Don’t confuse with NW-1 vs NW-2 vs NW-3: NW-1 is the Ganga-Bhagirathi-Hooghly system (Haldia to Prayagraj). NW-2 is the Brahmaputra (Sadiya to Dhubri). NW-3 is the West Coast Canal in Kerala (Kottapuram to Kollam).
Don’t confuse with IWAI vs DGLL: IWAI surveys and maintains aids on National Waterways. The Directorate General of Lighthouses and Lightships manages general aids to navigation along the coast.
Don’t confuse with NW-1 vs NW-2: NW-1 is the Ganga (Prayagraj to Haldia). NW-2 is the Brahmaputra (Sadiya to Dhubri).
Places in the news: 26 Prelims questions since 2013, rising (12% of news questions in 2022–26); they test location and why it matters.
Why it matters
- Water transport costs about one-third of road and half of rail per tonne, and emits far less carbon.
- Safer 24x7 navigation on the Brahmaputra can raise cargo and connect the Northeast to markets.
- Gives the landlocked Northeast a low-cost, lower-emission route to overseas markets.
- Strengthens connectivity and trade with Bangladesh.
Problems
- River depth and channels change with seasons, so continuous surveys and dredging are needed.
- Only 32 of 111 National Waterways are operational, and NW-2 cargo is still small at 1.29 MMT.
- Seasonal changes in river depth and heavy siltation in the Brahmaputra limit navigation.
- Dependence on Bangladesh's cooperation and border facilities.
Way forward
- Extend surveys, electronic charts and River Information Services to more waterways.
- Build terminals and last-mile links so that navigation aids translate into cargo growth.
- Maintain dredging and navigation aids, and build terminals and last-mile links.
- Provide regular, scheduled services and incentives to attract steady cargo.
Put in your answer
NW-2 cargo: Cargo on NW-2 rose from 0.90 MMT in FY 2024-25 to 1.29 MMT in FY 2025-26.
Cost advantage: Moving a tonne of freight by water costs roughly one-third of road and half of rail.
Jalvahak scheme: The cargo incentive programme was launched in December 2024 to encourage cargo on waterways.
Northeast investment: Over 68 billion rupees is being invested in Northeast waterways, including NW-2 development and a ship repair facility at Pandu.
- 2016Mains GS1 · Q19Problems and prospects of inland water transport in India
- 2017Mains GS1 · Q16Converting floods into sustainable irrigation and all-weather inland navigation
- 2020Mains GS1 · Q14Critically examine river interlinking as solution to floods, droughts, navigation
- 2026Prelims Q35Statements on Sagarmala Programme's port-led growth and inland waterway shipping
UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
No practice question for this one; the card may still help an answer. Why: Backgrounder with lasting facts on National Waterways, riverine lighthouses and cargo growth. Prelims asks about places and schemes, but no fresh debate or count supports a question here.
Worth revising until Prelims 2028: most news questions come within two years of the event.