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Nagarjunsagar-Srisailam Tiger Reserve
Introduction
Nagarjunsagar–Srisailam Tiger Reserve (NSTR), spread across Andhra Pradesh and Telangana, is India’s largest tiger reserve. Declared under Project Tiger in 1983, it protects an extensive tract of the Nallamala Hills and forms one of the country’s most important tiger landscapes.
Quick Facts
| Particular | Details |
| States | Andhra Pradesh and Telangana |
| Districts | Nandyal, Prakasam, Palnadu, Nagarkurnool and Nalgonda (among others) |
| Tiger Reserve Notification | 1983 |
| Total Area | 3,728 sq km (approx.) |
| Core Area | 1,200.82 sq km |
| Buffer Area | 2,527.18 sq km |
| Landscape | Nallamala Hills, Eastern Ghats |
| Forest Types | Southern Tropical Dry Deciduous, Mixed Deciduous and Thorn Forests |
| Major Rivers | Krishna and its tributaries |
| Best Time to Visit | October to March |
Location
The reserve extends across the Nallamala Hills in Andhra Pradesh and Telangana and surrounds parts of the Nagarjunasagar reservoir and Srisailam region.
History
NSTR became a Tiger Reserve in 1983 and is among the earliest reserves established under Project Tiger. It has long been recognised as a crucial stronghold for tigers in the Eastern Ghats.
Landscape, Geography & Habitat
The reserve consists of rugged plateaus, deep gorges, escarpments, dry deciduous forests, scrub forests and river valleys. Elevations range from about 100 to over 900 metres above sea level.
Flora
Important tree species include teak, axlewood, terminalia, tendu, bamboo, neem, mahua, jamun and native grasses.
Fauna
Wildlife includes Bengal Tiger, Leopard, Dhole, Sloth Bear, Indian Wolf in adjoining areas, Gaur, Sambar, Chital, Nilgai, Four-horned Antelope, Mugger Crocodile and over 300 bird species.
Rivers & Water Bodies
The Krishna River flows through the reserve, forming the Nagarjunasagar and Srisailam reservoirs that provide perennial water and important riparian habitats.
Other Attractions
Srisailam Temple, Nagarjunakonda, Ethipothala Falls, wildlife safaris, birdwatching and scenic viewpoints are major attractions.
Weather & Climate
Summers are hot, the southwest monsoon brings moderate rainfall and winters are pleasant.
How to Reach
Nearest airports: Hyderabad and Vijayawada. Nearest railway stations include Markapur Road, Nandyal and Macherla. The reserve is well connected by road from Hyderabad, Kurnool and Guntur.
Best Time to Visit
October to March offers comfortable weather for wildlife viewing.
Accommodation
Forest Department guest houses and Andhra Pradesh/Telangana Tourism accommodation are available at designated tourism locations with prior booking.
Conservation Highlights
As India’s largest tiger reserve, NSTR protects an extensive Eastern Ghats ecosystem and supports tiger conservation through habitat management, anti-poaching operations, scientific monitoring and community participation.
Visitor Tips
Carry sufficient water, wear muted colours, avoid littering and follow all Forest Department regulations.
Did You Know?
• Nagarjunsagar–Srisailam is India’s largest Tiger Reserve.
• It spans two states—Andhra Pradesh and Telangana.
• The reserve protects a major part of the Nallamala forest landscape.
Last Updated
July 2026