India’s second-largest tiger reserve – Sundarban Tiger Reserve

  • The Sundarban Tiger Reserve in West Bengal is India’s second-largest tiger reserve by area. 
  • It moved up in ranking after its expansion was approved by the National Board for Wildlife (NBWL) in August 2025. 
  • Prior to the expansion, the Sundarban was the seventh-largest tiger reserve in India. 
  • An additional 1,044.68 sq km was added to the existing reserve by incorporating three tiger-inhabited ranges (Matla, Raidighi, and Ramganga) in the South 24 Parganas district. 
  • The expansion increased the reserve’s total area to 3,629.57 sq km. 
  • The largest tiger reserve in India is Nagarjunsagar-Srisailam Tiger Reserve in Andhra Pradesh.

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