Explanation:

Madhya Pradesh officially declared Ratapani Wildlife Sanctuary as a Ratapani Tiger Reserve under Chief Minister Dr. Mohan Yadav. Ratapani, now the state’s eighth tiger reserve, has an estimated 90 tigers. It spans Raisen and Sehore districts, serving as a critical tiger habitat linked to the Satpura ranges. Encroachments and lack of prey led to tiger-human conflicts, increasing the need for conservation. The delay in declaration, despite NTCA approval in 2008, prompted a PIL by a wildlife activist. Projects like coal plants and railway lines threaten the reserve’s ecosystem, raising concerns for its biodiversity.