The Tamil Nadu Forest Department has divided the valley into 3 administrative areas: Thalinji beat 4290 ha, Manjampatti beat 3741.75 ha and Keelanavayal beat 3058.75 ha.
The Tamil Nadu Forest Department has subdivided the valley into three administrative sections: Thalinji area covering 4290 hectares, Manjampatti area spanning 3741.75 hectares, and Keelanavayal area encompassing 3058.75 hectares.