Explanation:

On October 5, the National Tiger Conservation Authority (NTCA) approved the Chhattisgarh government’s proposal to declare the combined areas of the Guru Ghasidas National Park and Tamor Pingla Wildlife Sanctuary as a Tiger Reserve.

• The new Reserve is located in the northern part of the state, bordering Madhya Pradesh and Jharkhand. This will be the fourth Tiger Reserve in Chhattisgarh, after the Udanti-Sitanadi, Achanakmar, and Indravati Reserves.
• Guru Ghasidas National Park is in Koriya district; Tamor Pingla is in Surajpur district in the northwestern corner of Chhattisgarh.
• Guru Ghasidas National Park was the last known habitat of the Asiatic cheetah in the country. Originally part of the Sanjay Dubri National Park, Guru Ghasidas Park was created as a separate entity in Chhattisgarh’s Sarguja region after the formation of the state in 2001.
• Turning Guru Ghasidas into a Tiger Reserve is important because it connects Jharkhand and Madhya Pradesh and provides a corridor for tigers to move between the Bandhavgarh and Palamau Tiger Reserves.
• The approval was granted under Section 38V(1) of The Wildlife (Protection) Act, 1972 which states that “Tiger Conservation Plan: The State Government shall, on the recommendation of the Tiger Conservation Authority, notify an area as a tiger reserve”.

Hence option 4th is correct.