PIB TrackerA tigress returns to Buxa, eight years after the prey base work began
T138 was moved from Valmiki in Bihar to a reserve declared in 1983 that has had no stable resident tiger population for decades. More than 800 chital and 380 hectares of grassland went in first.
What happened
- A tigress was released into Buxa Tiger Reserve, West Bengal, opening a phased Tiger Reintroduction Programme and India's Wildlife Week 2026.
- The animal, T138, was translocated from Valmiki Tiger Reserve, Bihar, after ecological, veterinary and management assessment.
- Buxa was declared a reserve in 1983 but lost its stable resident population to habitat degradation, fragmentation, land-use change and prey decline.
- Groundwork since 2018: more than 800 chital released and about 380 hectares of grassland restored.
- Camera traps recorded tigers in 2021, 2023 and 2026; the 2023 animal matched one from Manas Tiger Reserve, Assam.
For Prelims
- Reintroduction against augmentation: reintroduction returns a species to a range it has been lost from; augmentation adds animals to a population that still exists. The release uses both words, which is accurate here - tigers pass through Buxa but do not settle.
- Buxa: declared a Tiger Reserve in 1983, in the Dooars of north Bengal, connected to forests in Bhutan and Assam - a transboundary landscape, which is why the Manas camera-trap match matters.
- Who authorises a translocation: the National Tiger Conservation Authority, a statutory body under the Wildlife (Protection) Act, 1972 as amended in 2006, with the Wildlife Institute of India providing the technical assessment.
- Why prey comes first: a tiger needs roughly 50 ungulate kills a year, and a breeding population needs a prey density that can absorb that without declining. Releasing 800 chital before a tiger is the sequence the science requires.
- Grassland is habitat, not wasteland: about 380 hectares restored or converted - open grassland is what ungulates graze, so prey augmentation and grassland work are the same intervention.
- The Indian precedent: Panna (2009) and Sariska (2008) are the reintroductions after local extinction, and both showed that protection failure, not habitat, was the binding constraint.
- Valmiki: Bihar's only tiger reserve, in West Champaran on the Nepal border, adjoining Nepal's Chitwan - a source population, which is why it is the donor here.
- Eco-Development Committees: village-level bodies through which reserve managers route livelihood support and conflict mitigation; 64 are engaged here, and they are the mechanism by which a reintroduction is made survivable for the people living around it.
For UPSC: The most concrete conservation document of the month, and a clean demonstration that species recovery is habitat and prey work with an animal added at the end. Use it on conservation of species and protected areas, on Project Tiger and the NTCA, on corridors and transboundary landscapes, and on community participation, where the 64 committees are the instrument.
What it is NOT: No tiger population figure is given for Buxa before or after - not even zero resident, only that a stable population was absent. No count is given of how many animals the phased programme will move, over what period, or from which reserves. No prey density figure appears for the reserve, so the claim of a positive trend in prey abundance cannot be checked against a threshold. No carrying capacity estimate, no cost, no human-wildlife conflict baseline for the 64 committee villages, and no compensation arrangement is described. The release also does not say whether T138 was radio-collared, though it describes telemetry monitoring.
For Mains
Syllabus: GS3.14 · GS2.2 · Linkage L1
Anchor
A tigress was released into Buxa Tiger Reserve in West Bengal, beginning a phased reintroduction programme in a landscape declared a tiger reserve in 1983 that has had no stable resident tiger population for decades. The animal, T138, came from Valmiki Tiger Reserve in Bihar - one State's surplus into another State's gap, authorised through the national authority.
Substantiation (data)
The animal is the last step, not the first. Since 2018 the project has released more than 800 chital to build the prey base and restored or converted about 380 hectares of grassland, with monitoring reporting a positive trend in prey abundance. Camera traps recorded tigers in 2021, 2023 and 2026, and the 2023 individual was matched to a tiger from Manas in Assam.
Position
That Manas match is the most informative fact in the release. It says the corridor between the two landscapes is intact and animals do move through Buxa - so the reserve was not failing on connectivity. What it was failing on was the conditions needed to make a tiger stay, which is prey and protection. A reintroduction into a reserve that already receives transient tigers is an argument about residency, not about access.
Counterpoint
One animal is not a population. The release is careful to say the objective is conditions in which a population can establish, breed and become self-sustaining, and that further augmentation will follow where scientifically justified - but it gives no number, no timetable and no target population. Sariska and Panna both needed multiple animals of both sexes over years, and both showed that the first release is where the work starts.
Way forward
The 64 eco-development and joint forest management committees are the part to watch. A reintroduced predator in a landscape with people around it generates conflict before it generates pride, and whether a recovery survives is usually decided by how fast compensation is paid and how credible the livelihood offer is. The release names the committees and names no compensation arrangement.
Conclusion
Eight years of grassland and chital, then one tigress - that is the right order, and it is rarely the order a conservation announcement describes. The figures that will show whether it worked are the ones not yet published: prey density, the number of further animals planned, and the conflict record in those 64 villages.
Deploys into: Conservation of species and protected areas · Project Tiger and the National Tiger Conservation Authority · Corridors and transboundary landscapes · Community participation in conservation
Ministry of Environment, Forest and Climate Change · 2026-10-02 · PRID 2318110 · PIB source ↗