Rajgir or Pant Wildlife Sanctuary, is situated in Nalanda Forest Division covering an area of 35.84 km2 under the Nalanda district administration. This Wildlife Sanctuary represents a remnant patch of forests nestled in the picturesque Rajgir hills within the South Gangetic Plain. This sanctuary provides numerous ecosystem services to the surrounding landscape including varieties of flora and fauna. Therefore, to protect this forest a 35.84 km2 was notified as Rajgir Wildlife Sanctuary in 1978.
The sanctuary is enclosed by five peaks of the Rajgir hills that form a natural boundary, separating the sanctuary from the surrounding landscape of agricultural fields, habitation, roads and villages. These five peaks are Vipulgiri (1), Ratnagiri (2), Udaigiri (3), Sonagiri (4) and Baibhavgiri (5). To the north of the sanctuary is located the Pachanan and Saraswati rivers as well as the town of Rajgir.
A survey of wildlife found 28 species of larger mammals, over 183 species of birds, 39 species of reptiles, 11 species of amphibians, 13 species of fishes, 51 species of butterflies and 6 species of scorpions. Varied diversity and abundance of wildlife that is characteristic of this region, and the range of habitats and ecosystems found in Rajgir WLS.