Why Buxa is bringing tigers back: a tigress from Bihar starts West Bengal's reintroduction
A tiger reserve with no resident tigers: can one tigress from Valmiki begin a self-sustaining population?
Published 6 October 2026. Written by Pratidin from the reports linked at the end; every fact checked by a separate review before publishing. How we work
The Hindu explains the phased programme to bring tigers back to Buxa Tiger Reserve in Alipurduar district of north Bengal. In the first week of October 2026, during Wildlife Week, a three-year-old tigress, T138, translocated from Valmiki Tiger Reserve in Bihar, was released at Buxa in the presence of Union Environment Minister Bhupender Yadav and West Bengal Chief Minister Suvendu Adhikari. The stated aim is to establish a viable, self-sustaining tiger population in a reserve that has gone without resident tigers for a prolonged period because of habitat degradation, fragmentation and a fall in prey. Yadav said the recovery of tigers in Buxa was also significant at the landscape level.
Buxa was created in 1983 as India's 15th tiger reserve and covers 760.87 sq km: a core of 390.58 sq km and a buffer of 370.29 sq km. Its northern boundary runs along the border with Bhutan, where it adjoins Phibsoo Wildlife Sanctuary, and it connects with Jaldapara National Park and the Manas landscape in Assam. Preparatory work began in 2018. More than 800 chital (spotted deer) have been released to rebuild the prey base and about 380 hectares of degraded grassland have been restored. The release follows protocols framed by the National Tiger Conservation Authority (NTCA), with radio-telemetry collars and camera traps to monitor the animal.
India has done this before, with mixed results. Sariska in Rajasthan had no tigers left by January 2005; tigers were moved there from Ranthambhore from June 2008, the first by helicopter. Panna in Madhya Pradesh lost all its tigers by 2009 and was restocked from Bandhavgarh, Kanha and Pench, one of the best-known recoveries. Satkosia in Odisha shows the risk: in 2018, in India's first inter-State tiger translocation, Mahavir from Kanha and Sundari from Bandhavgarh were moved there, but Mahavir was killed by poachers, Sundari strayed near villages, local people had not been taken into confidence, and the project was suspended. The Hindu notes that Buxa must contend with human settlements, tea estates, railway lines and commercial traffic to Bhutan.
Prelims facts
- A three-year-old tigress, T138, from Valmiki Tiger Reserve (Bihar) was released at Buxa Tiger Reserve (West Bengal) in the first week of October 2026, starting a phased reintroduction.
- Buxa: created in 1983 as India's 15th tiger reserve; 760.87 sq km (390.58 core, 370.29 buffer); borders Bhutan's Phibsoo Wildlife Sanctuary.
- Since 2018 more than 800 chital have been released and about 380 hectares of grassland restored at Buxa to build a prey base.
- Precedents: Sariska (restocked from Ranthambhore from 2008), Panna (restocked from 2009) succeeded; Satkosia (2018, India's first inter-State translocation) was suspended.
- The NTCA is a statutory body under the Wildlife (Protection) Act, 1972, set up through a 2006 amendment; Project Tiger began in 1973.
Quick recall
- Which tigress started the Buxa reintroduction, and where did it come from?
- T138, a three-year-old tigress from Valmiki Tiger Reserve in Bihar.
- In which district is Buxa Tiger Reserve?
- Alipurduar district, West Bengal.
- When did Buxa become a tiger reserve?
- 1983, as India's 15th tiger reserve.
- What is Buxa's area?
- 760.87 sq km: 390.58 sq km core and 370.29 sq km buffer.
- Which Bhutanese protected area adjoins Buxa?
- Phibsoo Wildlife Sanctuary, to the north.
- How has Buxa built its prey base since 2018?
- By releasing over 800 chital and restoring about 380 hectares of degraded grassland.
- Which was India's first inter-State tiger translocation?
- Satkosia, Odisha, in 2018 (tigers from Kanha and Bandhavgarh); it was suspended.
- Under which law is the NTCA constituted?
- The Wildlife (Protection) Act, 1972, through the 2006 amendment.
Prelims practice question
With reference to Buxa Tiger Reserve, consider the following statements:
1. It shares a boundary with Bhutan.
2. It was one of the nine tiger reserves created at the launch of Project Tiger in 1973.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Show answer
Answer: (a) 1 only. Statement 1 is correct: Buxa's northern boundary runs along the international border with Bhutan, adjoining Phibsoo Wildlife Sanctuary. Statement 2 is wrong: Buxa became a tiger reserve in 1983, as India's 15th, ten years after Project Tiger began with nine reserves.
Use this in UPSC Mains: previous-year questions
Recurring theme: Wildlife conservation, protected areas and species recovery in India
- How to use this
Use Buxa as an example of fauna conservation beyond laws on paper: species recovery through prey restoration, translocation and transboundary connectivity in the eastern Himalayan foothills.
- Buxa (760.87 sq km, Alipurduar) adjoins Bhutan's Phibsoo sanctuary and connects with Jaldapara and the Manas landscape.
- Since 2018, over 800 chital released and about 380 hectares of grassland restored before tigress T138 arrived from Valmiki in October 2026.
- Satkosia (2018) failed when communities were not consulted, showing that conservation laws need local participation to work.
Tests knowledge of tiger reserve zoning; Buxa's 390.58 sq km core is its critical tiger habitat under the Wildlife (Protection) Act.
Mains practice question
Reintroducing tigers into reserves where they have disappeared is as much a social exercise as an ecological one. Discuss with reference to the Buxa programme and earlier Indian experiences. (150 words)
Model answer
In October 2026 a tigress, T138, from Bihar's Valmiki Tiger Reserve was released at Buxa in West Bengal, a reserve without resident tigers for years, to begin a phased reintroduction.
The ecological side
- Prey: over 800 chital released and about 380 hectares of grassland restored since 2018.
- Space and connectivity: 760.87 sq km linked to Bhutan's Phibsoo, Jaldapara and the Manas landscape.
- Monitoring through radio collars and camera traps under NTCA protocols.
The social side
- Satkosia (2018) failed partly because local communities were not taken into confidence; one tiger was poached and another strayed near villages.
- Buxa has human settlements, tea estates, railway lines and traffic to Bhutan.
- Released tigers will share space with buffer-zone villages; under Section 38V the buffer is meant to promote coexistence.
Way forward
- Compensation and conflict-response teams before more releases.
- Involve forest villages and tea estate workers in monitoring and ecotourism.
- Secure corridors across the State and international border.
A tiger population returns only where people living around it accept and gain from its return.
The basics
Why this matters
India holds most of the world's wild tigers, yet some of its tiger reserves have none. Bringing tigers back to such places is one of the hardest tasks in conservation: the animal has to survive the move, find enough prey, avoid conflict with people and, ideally, breed. Buxa in north Bengal began that process in October 2026. The case connects Prelims facts (reserves, corridors, institutions) with a Mains theme: conservation succeeds only with local support.
What a reintroduction needs
- 1PreyEnough deer and other prey to feed breeding tigers
- 2SpaceA large inviolate core with a buffer around it
- 3ProtectionAnti-poaching staff and monitoring
- 4ConnectivityCorridors to other forests so populations can mix
- 5PeopleSupport of nearby villages, with compensation for losses
Prey comes first, which is why Buxa released chital for years before any tiger arrived; see Prey base and carrying capacity. Space is organised into zones, explained in Core and buffer zones of a tiger reserve.
How it is done
- 1Prepare the habitatRestore grassland and release prey; at Buxa, over 800 chital and about 380 hectares of grassland since 2018.
- 2Choose the animalPick a young, healthy tiger from a source population; T138 came from Valmiki in Bihar.
- 3Move it safelyTransport under veterinary care, by road or air.
- 4ReleaseRelease into the reserve, often after a period in an enclosure.
- 5MonitorTrack with radio collars and camera traps; add more tigers in later phases.
The rules for all this are set by the National Tiger Conservation Authority.
Lessons from earlier attempts
- Sariska restocked from Ranthambhore from 2008
- Panna restocked from 2009 with tigers from Bandhavgarh, Kanha and Pench
- Both are cited as successful recoveries
- India's first inter-State tiger translocation
- One tiger poached, another strayed near villages
- Communities not taken into confidence; project suspended
These cases are described in Tiger translocation in India.
Go deeper
In one line: A three-year-old tigress, T138, moved from Valmiki in Bihar to Buxa in West Bengal in October 2026, begins a phased plan to rebuild a tiger population in a reserve that lost its resident tigers.
Why it matters for UPSC
Tiger reserves, their locations and the institutions behind them are regular Prelims material. For Mains, reintroduction is a case study in habitat, prey, corridors and community support.
The core idea
The programme follows protocols of the National Tiger Conservation Authority. India has moved tigers before, with successes and a failure, covered in Tiger translocation in India. A reserve is divided into an inviolate core and a buffer, explained in Core and buffer zones of a tiger reserve. Whether Buxa can hold breeding tigers depends on its Prey base and carrying capacity.
Numbers and dates to remember
- Buxa: tiger reserve since 1983, India's 15th; 760.87 sq km (390.58 core, 370.29 buffer).
- Alipurduar district, West Bengal; borders Bhutan's Phibsoo Wildlife Sanctuary.
- Since 2018: over 800 chital released; about 380 hectares of grassland restored.
- Tigress T138, three years old, from Valmiki Tiger Reserve, Bihar.
- Sariska restocked from 2008; Panna from 2009; Satkosia attempt in 2018.
- Project Tiger: 1973. NTCA: 2006 amendment to the Wildlife (Protection) Act, 1972.
Where to go next
- National Tiger Conservation Authority: the statutory body that sets the rules.
- Tiger translocation in India: what Sariska, Panna and Satkosia teach.
- Core and buffer zones of a tiger reserve: how a reserve is zoned.
- Prey base and carrying capacity: why prey decides how many tigers an area can hold.
Go deeper: reintroduction versus natural recovery
The case for active reintroduction is that some reserves are too isolated for tigers to return on their own. Without a resident population, protection budgets and public attention shrink, and habitat degrades further. A planned release, backed by prey augmentation, can restart a population within years. Panna is the standard example: emptied of tigers by 2009, it was restocked from Bandhavgarh, Kanha and Pench and recovered, as described in Tiger translocation in India.
The case for caution is that moving a tiger does not fix the reasons it disappeared. If poaching, conflict or prey loss persist, released animals die or leave. Satkosia showed this in 2018: one tiger was poached, the other strayed towards villages, protests followed and the project was suspended.
Buxa sits between these positions. Its preparation since 2018, with chital releases and grassland restoration, addresses the Prey base and carrying capacity problem. Its connectivity to Bhutan's Phibsoo, Jaldapara and the Manas landscape is an advantage: tigers could eventually move across a larger landscape rather than live in an island. Its weaknesses are human pressure, with settlements and tea estates, and linear infrastructure such as railway lines and roads used for trade with Bhutan.
The legal framework helps. Under the Wildlife (Protection) Act, the National Tiger Conservation Authority approves tiger conservation plans, and Core and buffer zones of a tiger reserve separate an inviolate core from a buffer where people and wildlife coexist. Success will be measured not by the release but by whether tigers settle, breed and stay out of conflict over the next few years.
National Tiger Conservation Authority
The statutory body that sets the rules for tiger reserves.
In one line: The NTCA is a statutory body under the Wildlife (Protection) Act, 1972 that oversees Project Tiger and India's tiger reserves.
Origins
Project Tiger began in 1973 with nine reserves. After tigers vanished from Sariska, a Tiger Task Force set up in 2005 recommended stronger institutions, and the Wildlife (Protection) Amendment Act, 2006 created the NTCA through a new chapter in the 1972 Act. The Union Environment Minister chairs it.
What it does
The NTCA approves the tiger conservation plans that States prepare, lays down standards for tourism and protection, runs the all-India tiger estimation with the Wildlife Institute of India, and issues protocols for actions such as translocating tigers.
Why it is in the news
The Buxa release follows NTCA protocols, with radio collars and camera traps for monitoring.
Where to go next
Tiger translocation in India
What Sariska, Panna and Satkosia teach.
In one line: India has moved tigers to empty or depleted reserves since 2008, with clear successes and one well-known failure.
Sariska, Rajasthan
By January 2005 no tigers were left. The first tiger was airlifted from Ranthambhore on 28 June 2008, and more followed.
Panna, Madhya Pradesh
Panna was officially declared to have no tigers in June 2009. It was restocked from 2009 with tigresses from Bandhavgarh and Kanha and a male from Pench, and became one of the most cited recoveries.
Satkosia, Odisha
In 2018, in India's first inter-State translocation, Mahavir (from Kanha) and Sundari (from Bandhavgarh) were moved there. Mahavir was poached, Sundari strayed near villages, communities protested and the project was suspended.
Why it is in the news
Buxa's programme, beginning with T138 from Valmiki in Bihar, is also an inter-State move and will be judged against these cases.
Where to go next
Core and buffer zones of a tiger reserve
How a tiger reserve is zoned.
In one line: A tiger reserve has a core, or critical tiger habitat, kept inviolate for tigers, and a buffer where wildlife and people coexist.
The core
Under Section 38V of the Wildlife (Protection) Act, 1972, the core or critical tiger habitat is identified on scientific evidence as an area that must be kept free of human disturbance for tiger conservation. Any relocation of people from it must be voluntary and with rehabilitation.
The buffer
The buffer or peripheral area surrounds the core. It allows a lower level of habitat protection and aims to promote coexistence, supporting local livelihoods while giving wildlife space to spread.
Why it is in the news
Buxa's 760.87 sq km is split into a core of 390.58 sq km and a buffer of 370.29 sq km. The buffer, with villages and tea estates nearby, is where conflict risk will be highest.
Where to go next
Prey base and carrying capacity
Why prey decides how many tigers an area can hold.
In one line: Carrying capacity is the largest population an area can support; for tigers it is set mainly by how much prey is available.
Why prey matters
Tigers are top predators that need large animals such as deer and wild pig. A tigress raising cubs needs a steady supply. Where prey is scarce, tigers range widely, enter farms and villages, and conflict follows.
Building a prey base
Reserves raise carrying capacity by restoring grasslands and water sources and by releasing prey animals. At Buxa, more than 800 chital have been released and about 380 hectares of degraded grassland restored since 2018, before the first tiger arrived.
Why it is in the news
The Hindu notes that declining prey was one reason tigers disappeared from Buxa. Whether the restored prey base can support breeding tigers will decide if the programme becomes self-sustaining.
Where to go next
Take the 6 October 2026 quiz: 30 Prelims-style questions with answers