Project Dolphin and the Gangetic Dolphin Explained

Project Dolphin is India’s flagship programme to protect river and marine dolphins and the waters they depend on. Announced by the Prime Minister in his Independence Day address on 15 August 2020, it was conceived as the aquatic counterpart to Project Tiger, the 1973 effort that turned around the fortunes of India’s national animal. Where Project Tiger secured forests, Project Dolphin aims to secure rivers, estuaries and coastal seas.

The star of the effort is the Gangetic dolphin (Platanista gangetica), India’s National Aquatic Animal. Almost blind, it finds its way through muddy water by sound alone, and its presence tells scientists that a river is still alive. This explainer covers the animal, the dangers it faces, how the programme works, the sanctuaries and survey efforts behind it, and why saving the dolphin is really about saving the river.

Quick Facts

What Is Project Dolphin?

Project Dolphin is a conservation initiative that treats dolphins as the face of healthy aquatic ecosystems. The Prime Minister announced it from the ramparts of the Red Fort on 15 August 2020, linking it to the earlier success of Project Tiger and signalling that the country wanted a dedicated, long-term strategy for aquatic wildlife. The proposal was subsequently developed and taken forward by the central government through the ministries concerned with the environment and with water resources.

The programme covers two groups of animals. River dolphins live in freshwater and include the Gangetic dolphin and the Indus river dolphin. Marine dolphins and porpoises live in coastal seas, estuaries and brackish lagoons, and include species such as the Irrawaddy dolphin, the Indo-Pacific humpback dolphin and the finless porpoise.

Why a “Project” Model?

India has a tradition of species-focused missions: Project Tiger (1973), Project Elephant (1992) and several others. The logic is simple. A charismatic species attracts public attention, funding and political will, and protecting its habitat automatically protects hundreds of less visible species that share it. Dolphins fit this model neatly because their survival is tied to flowing water, clean water and connected river channels.

The Gangetic Dolphin: Biology and Behaviour

The Gangetic dolphin is a freshwater mammal, not a fish. It must come to the surface to breathe, and its blowhole releases a soft puffing sound that earned it the local name “susu” or “soons” (in Bengali, “shushuk”). Adults are typically around two to two and a half metres long, with a long, slender, beak-like snout lined with sharp, visible teeth, a low triangular fin, and large flippers. Females are generally larger than males.

Nearly Blind, Superbly Tuned

The species has no true lens in its eye, so it can detect little more than the direction and intensity of light. In the silty, turbid waters of the Ganga, vision is of limited use anyway. Instead, the dolphin emits ultrasonic clicks and interprets the returning echoes to locate fish, obstacles and the river bed. This ability is called echolocation.

• Swimming style: often swims on its side, with one flipper trailing along the river bottom while it scans for prey.
• Diet: feeds on fish, prawns and other invertebrates found in the river.
• Calves: newborns are a chocolate-brown shade and lighten with age; females typically bear a single calf at a time, so recovery from losses is slow.
• Habitat preference: deep pools, confluences and counter-current eddies, where food gathers and the water is calmer.

Where the Dolphin Lives

Gangetic dolphins inhabit the Ganga-Brahmaputra-Meghna and Karnaphuli-Sangu river systems, which span India, Nepal and Bangladesh. In India they are found across a belt of rivers that includes the Ganga and its major tributaries (such as the Yamuna, Ghaghara, Gandak and Kosi), the Brahmaputra and its tributaries in Assam, and parts of the Chambal and Son systems. Uttar Pradesh, Bihar, West Bengal and Assam are the principal strongholds.

The Indus River Dolphin

For many years the dolphins of the Ganga and the Indus were treated as one species with two subspecies. In 2012 they were recognised as separate species, with the Indus river dolphin (Platanista minor) native to the Indus basin, mainly in Pakistan. In India, a small population survives in the Beas river in Punjab, a stretch where dolphins were confirmed during the late 2000s. It is one of the rarest freshwater cetaceans in the country, and its fragile numbers make the Beas an important target for the programme.

Status: Endangered and Protected

The Gangetic dolphin is listed as Endangered on the IUCN Red List. In India it is placed in Schedule I of the Wildlife (Protection) Act, 1972, the highest level of legal protection, which makes hunting, capture or trade a serious offence. Internationally it is also covered by CITES, which restricts trade in the species.

The dolphin was declared the National Aquatic Animal on 5 October 2009, a decision taken at a meeting of the National Ganga River Basin Authority. The Ganga itself had been declared the National River in 2008. The pairing was deliberate: the river and its most distinctive resident were both elevated to national symbols.

How Many Are Left?

For decades, estimates were patchy and based on local surveys. The first comprehensive, national-scale estimation, carried out over several years in the early 2020s under Project Dolphin with the Wildlife Institute of India and state forest departments, surveyed thousands of kilometres of river across the Ganga and Brahmaputra basins. It concluded that the population runs to a few thousand animals, roughly six thousand, with Uttar Pradesh, Bihar, West Bengal and Assam holding the bulk. These figures are dated and will change as surveys are repeated, but they replaced decades of guesswork with a measured baseline.

Threats to the Dolphin

Dolphins face a combination of direct and indirect pressures. The table below summarises the principal ones and how each harms the animal.

Habitat Fragmentation

Barrages such as Farakka on the Ganga (commissioned in the 1970s) and several others on the upper reaches have altered the natural pulse of the river. A dolphin cut off from its mates in a short, shrinking stretch of water is exposed to local threats and cannot easily recolonise elsewhere. Upstream, some historical ranges have been lost altogether.

Bycatch: The Silent Killer

Most dolphin deaths are not deliberate. Fishers set nets across channels where fish are plentiful, which is exactly where dolphins forage. Trapped animals drown within minutes. Because many riverside communities depend on fishing for their livelihood, any solution must work with them rather than against them.

How Project Dolphin Works

The programme is designed to be implemented jointly by the Ministry of Environment, Forest and Climate Change and the Ministry of Jal Shakti, with its water-focused arm, the National Mission for Clean Ganga (NMCG), playing a central role alongside state forest and fisheries departments. Its approach combines habitat protection, science, enforcement and community participation.

• Population assessment: regular, standardised surveys using acoustic and visual methods to track numbers and distribution.
• Threat reduction: reducing bycatch, curbing poaching and promoting safer fishing practices and gear.
• Habitat management: maintaining adequate flows, restoring deep pools and monitoring water quality.
• Capacity building: training forest staff, fisheries officials and local volunteers in rescue, monitoring and data collection.
• Awareness: school programmes, local campaigns and observance of National Dolphin Day.

Marine and Coastal Component

The marine side addresses dolphins and porpoises of the coast. The Irrawaddy dolphin of Chilika Lake in Odisha is the best-known example, and the Sundarbans also support this species along with other cetaceans. Here the challenges include bycatch in coastal fisheries, boat traffic, shrimp farming and habitat disturbance, so the programme works closely with coastal communities and fisheries managers.

Science and Monitoring

Conservation without data is guesswork, and one of the programme’s key contributions is a scientific foundation. The first-ever Gangetic dolphin estimation relied on teams travelling along river stretches in boats, using trained observers and underwater hydrophones that record the clicks dolphins make. Acoustic monitoring is especially useful in murky water where animals are rarely seen.

Why Surveys Matter

• They give a baseline against which future trends can be measured.
• They show which stretches hold the most animals and therefore deserve priority protection.
• They reveal gaps, such as tributaries where dolphins have disappeared.
• They help evaluate whether conservation measures are actually working.

Research also covers diet, movement, breeding and the effect of noise, using tools such as tagging, genetic sampling and hydrological studies. Better knowledge about where dolphins feed and breed helps planners decide where dredging, sand mining or new infrastructure should be avoided.

Vikramshila Gangetic Dolphin Sanctuary

The only protected area in India created specifically for the Gangetic dolphin is the Vikramshila Gangetic Dolphin Sanctuary in Bihar, notified in 1991 under the Wildlife (Protection) Act. It covers a roughly 60 km stretch of the Ganga in the Bhagalpur region, running between Sultanganj and Kahalgaon. The sanctuary takes its name from the ancient Vikramshila university whose ruins lie nearby.

The stretch is a natural dolphin hotspot, with deep pools and strong eddies where fish congregate. Enforcement within the sanctuary is complicated because the river is a working landscape: fishing, boat transport and agriculture all continue along its banks. Management therefore depends heavily on local cooperation, patrolling, awareness campaigns and alternative livelihoods for fishing families.

Communities and Dolphin Mitras

Riverside communities, especially fishers, are both the biggest risk and the best hope for dolphin survival. The programme therefore places emphasis on community stewardship. Volunteers sometimes called “Dolphin Mitras” (friends of the dolphin) act as local eyes and ears. They report sightings, help free dolphins trapped in nets, record strandings and spread messages about safe fishing.

Livelihood Linkages

Conservation succeeds when people gain, rather than lose. Strategies include providing fishers with safer or dolphin-friendly gear, creating alternatives to dolphin-oil bait, offering training for tourism and eco-guiding, and recognising communities that protect wildlife. Dolphin-watching is already a draw in places such as the Ganga stretches of Bihar and the Brahmaputra in Assam, when carried out responsibly with limited boat numbers and low speeds.

Namami Gange and the River Connection

Project Dolphin is closely tied to Namami Gange, the flagship river rejuvenation mission launched in 2014 under the National Mission for Clean Ganga. Namami Gange works on sewage treatment, riverfront development, biodiversity conservation and afforestation, and ensuring “aviral dhara” (uninterrupted flow) and “nirmal dhara” (unpolluted flow). The dolphin is a living measure of whether that mission is succeeding.

If dolphins return to a stretch, it suggests that water quality, depth and fish stocks are recovering. If they vanish, it signals trouble. This is why the dolphin is called an indicator species, and also an umbrella or flagship species: protecting enough habitat for dolphins also protects fish, turtles, gharials, otters and birds that share the same waters.

Milestones and National Dolphin Day

National Dolphin Day and Public Awareness

National Dolphin Day is observed on 5 October, the date on which the Gangetic dolphin was declared the National Aquatic Animal in 2009. The day is marked by school events, river walks, exhibitions and social-media campaigns organised by forest departments, the National Mission for Clean Ganga and conservation groups.

Awareness matters because many people have never seen a river dolphin. The animal surfaces briefly, usually in turbid water, and is easily mistaken for a fish or a piece of floating debris. Public education helps fishers, boatmen and visitors understand why the dolphin is important and how to avoid harming it.

Why Saving the Dolphin Saves the River

A river dolphin sits at the top of the aquatic food chain. For it to survive, the river must hold enough water through the dry months, allow free movement between pools, support healthy fish populations and remain reasonably free from toxic pollution. Those are the same conditions that millions of people need for drinking water, irrigation, fisheries and cultural life.

That makes the programme a river programme as much as a wildlife one. Flow management, sewage treatment, sustainable sand mining, careful planning of waterways and fair treatment of fishing communities all serve the dolphin and the public simultaneously. The challenge ahead is balancing infrastructure and development with the need to keep rivers alive and connected.

Conclusion

Project Dolphin turns a modest, nearly blind mammal into a symbol of river health. It builds on the tradition of Project Tiger, uses the framework of Namami Gange, and depends on science, law and community goodwill. The numbers are small, the threats are real, but the first national survey and growing local involvement offer a sound basis for recovery. Whether the susu continues to surface in the Ganga and Brahmaputra will say a great deal about how well India looks after its rivers. This article was last updated on 1 October 2026.

Frequently Asked Questions

What is Project Dolphin?

Project Dolphin is an Indian conservation programme announced on 15 August 2020 to protect river and marine dolphins and their habitats. It was inspired by Project Tiger and focuses on population surveys, threat reduction, habitat protection and community participation, working with the environment and Jal Shakti ministries.

Why is the Gangetic dolphin the National Aquatic Animal?

It was declared the National Aquatic Animal on 5 October 2009 because it is unique to the Ganga-Brahmaputra river systems and serves as an indicator of river health. Its decline reflects deteriorating water quality, flow and fish stocks, so protecting it helps protect the entire river ecosystem.

Is the Gangetic dolphin really blind?

It is nearly blind. It lacks a proper eye lens and can detect only light and dark. To navigate and hunt in muddy water, it uses echolocation, sending out ultrasonic clicks and interpreting the echoes that bounce back from fish and obstacles.

How many Gangetic dolphins are there in India?

The first comprehensive national estimation, carried out in the early 2020s, suggested a population of a few thousand animals, roughly six thousand, concentrated in Uttar Pradesh, Bihar, West Bengal and Assam. These figures are approximate and will be updated as new surveys are done.

What are the main threats to river dolphins?

The biggest dangers are bycatch in fishing nets, habitat fragmentation by dams and barrages, declining water flow, pollution, vessel noise and poaching for oil used as fish bait. Several of these overlap, which makes coordinated river management essential.

What is National Dolphin Day?

National Dolphin Day is observed every year on 5 October, the anniversary of the Gangetic dolphin being declared the National Aquatic Animal in 2009. It is used to raise awareness about river dolphins, their habitat and the need for clean, free-flowing rivers.

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