The correct option is 2 and 3 only.
Explanation
India's biodiversity conservation is managed through a network of protected areas and legal frameworks such as the Wildlife (Protection) Act, 1972. Specific projects target the recovery of endangered species within their distinct geographical habitats.
Statement-wise Analysis:
- Statement 1 is Incorrect: The Great One-horned Rhinoceros (Rhinoceros unicornis) is not found in the Periyar Tiger Reserve. The Periyar Tiger Reserve is located in the Western Ghats of Kerala and is known for the Asian Elephant and Bengal Tiger. The One-horned Rhinoceros is primarily restricted to the alluvial grasslands of the Terai and Brahmaputra basins, with major populations in Kaziranga National Park (Assam) and Jaldapara National Park (West Bengal).
- Statement 2 is Correct: The Asiatic Lion (Panthera leo persica) is a protected species. It is currently found only in and around the Gir National Park and Wildlife Sanctuary in Gujarat. The Government of India has initiated specific conservation measures, including Project Lion, to ensure the long-term survival of the species.
- Statement 3 is Correct: The Great Indian Bustard (Ardeotis nigriceps) is listed in Schedule I of the Wildlife (Protection) Act, 1972. This schedule grants the species absolute protection, and offences regarding these species attract the highest penalties. It is also classified as Critically Endangered by the IUCN.
Key Takeaway: The One-horned Rhinoceros is endemic to North-East India and the Terai region, while the Asiatic Lion is endemic to Gujarat. The Great Indian Bustard is a Critically Endangered bird protected under the highest schedule of the Wildlife (Protection) Act, 1972.