Explanation:

- Ponung and Tapu are indeed well-known dance forms associated with the state of Arunachal Pradesh. These traditional dances often play a significant role in the cultural and social events among various tribes in the region.

- Option 1: Chhattisgarh - This state is known for its rich cultural heritage, including dance forms like Pandwani, Raut Nacha, and Panthi, but not Ponung and Tapu.

- Option 2: Arunachal Pradesh - Ponung and Tapu are vibrant dance forms here. They are performed during festivals and community celebrations, reflecting the tribal traditions.

- Option 3: Goa - While Goa is famous for its music and dance, particularly influenced by its colonial history, it doesn't feature Ponung and Tapu.

- Option 4: Bihar - Bihar is rich in traditional dances like Jat-Jatin and Bidesia but not Ponung and Tapu.