Enumerate the problems and prospects of inland water transport in India.

India has about 14,500 km of navigable waterways and 111 declared National Waterways, yet inland water transport (IWT) carries under 2 per cent of domestic freight — a striking under-use of the cheapest and cleanest bulk-cargo mode.

Problems

• Natural constraints: lean-season flows, heavy siltation and shifting channels keep the least available depth too low for large barges on most stretches.
• Diversion of river water for irrigation and drinking supply reduces navigability and creates inter-sectoral conflict.
• Infrastructure gaps: few mechanised terminals, night-navigation aids or last-mile rail-road links; old bridges with low vertical clearance obstruct vessels.
• A small, ageing vessel fleet, shortage of trained crew and thin private investment.
• Competition from dense rail and highway networks offering assured, door-to-door schedules.
• Ecological concerns: capital dredging affects aquatic life such as the Gangetic dolphin.

Prospects

• Lowest freight cost and fuel use per tonne-km — directly serving India's logistics-cost reduction and decarbonisation goals.
• The National Waterways Act 2016 and the World Bank-aided Jal Marg Vikas Project on NW-1 (Haldia–Varanasi), with multimodal terminals at Varanasi, Sahibganj and Haldia.
• Assured bulk traffic — coal, fly ash, cement, foodgrains; cargo on National Waterways has crossed 130 million tonnes a year.
• Indo-Bangladesh Protocol routes open the Northeast through NW-2 (Brahmaputra) and NW-16 (Barak).
• River cruise tourism (MV Ganga Vilas) and Ro-Ro ferries add passenger and tourism potential, with synergies under Sagarmala and PM Gati Shakti.

With assured depth, terminals and multimodal integration, IWT can shift bulk freight off congested roads and cut India's logistics costs sustainably.