Siliserh Lake, Location, Man Made Wetland, Biodiversity

Siliserh Lake is a human made wetland located in a semi arid region of Rajasthan. It is important for water supply and biodiversity conservation. It lies within the buffer zone of Sariska Tiger Reserve. The lake covers about 7 km² of area and supports diverse flora and fauna, making it ecologically significant and recently recognised as a Ramsar site of international importance.

Siliserh Lake Features

Siliserh Lake is a Man Made Freshwater Lake in Rajasthan that provides water security and ecological benefits.

• Location: Situated about 8 miles southwest of Alwar city, the lake lies within the Sariska Tiger Reserve buffer zone.
• Physical Characteristics: The wetland spans around 7 km² and is surrounded by dense woodland, with historical cenotaphs along its embankment, reflecting a blend of natural and cultural heritage.
• Hydrological Importance: It acts as a key water source in a water scarce region, supporting groundwater recharge, drinking water supply and sustaining local ecosystems and livelihoods.
• Ecotourism Value: The scenic surroundings, boating facilities and proximity to wildlife habitats make it a popular destination for tourism and birdwatching activities.

Siliserh Lake History

Siliserh Lake has historical significance as a 19th century water management structure built for urban supply.

• Construction Background: The lake was constructed in 1845 by Maharaja Vinay Singh of Alwar by building an embankment across a tributary of the Ruparel River.
• Purpose of Creation: It was primarily developed to supply drinking water to Alwar city, demonstrating early engineering solutions to water scarcity in semi arid regions.
• Historical Structures: Old aqueducts around the lake indicate its original water distribution system, while a nearby palace built for the king’s wife adds architectural value.
• Cultural Integration: The presence of cenotaphs and palace structures around the lake reflects integration of water infrastructure with royal heritage and regional architecture.

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Siliserh Lake Ramsar Site

Siliserh Lake has been designated as a Ramsar site due to its ecological importance and biodiversity richness.

• It is recognised under the Ramsar Convention as Site number 2581, marking its global ecological importance.
• With its inclusion in December 2025, India’s total Ramsar sites increased to 96, reflecting commitment towards wetland conservation and sustainable use.
• The Ramsar status ensures better conservation frameworks, promotes wise use of resources and strengthens ecological monitoring and protection.
• The lake supports biodiversity, water security, climate resilience and livelihood opportunities, making it a critical wetland in a semi arid ecosystem.

Siliserh Lake Biodiversity

Siliserh Lake hosts rich biodiversity, including numerous bird and mammal species, making it an important habitat.

• Avifaunal Diversity: The lake supports around 149 bird species, including migratory and resident birds such as cranes and kingfishers, making it a major birdwatching site.
• Threatened Bird Species: It hosts the vulnerable river tern (Sterna aurantia) and supports about 1% of the global population of black stork (Ciconia nigra).
• Mammalian Fauna: Around 17 mammal species are found, including the endangered Tiger (Panthera tigris), highlighting its connection with the Sariska Tiger Reserve landscape.
• Reptilian Species: It is a significant habitat for more than 300 Mugger Crocodiles. 
• Ecological Functions: The wetland supports food chains, breeding habitats and ecological balance, contributing to regional biodiversity conservation.

Siliserh Lake Challenges

Siliserh Lake faces environmental pressures that threaten its ecological balance and sustainability.

• Agricultural Pressure: Intensive agriculture in surrounding areas increases nutrient runoff and water extraction, affecting water quality and ecological health of the lake.
• Urban Expansion: Growing human settlements around the lake lead to habitat fragmentation, pollution and increased demand for water resources.
• Resource Exploitation: Overuse of water for domestic and agricultural purposes reduces water levels, impacting biodiversity and ecosystem services.
• Conservation Efforts: A restoration plan is underway focusing on sustainable management, habitat protection and maintaining ecological character under Ramsar guidelines.