The district of Bargarh is not bounded by which of the following?

Answer: Option B

The district of Bargarh is located in the western part of Odisha and shares its boundaries with multiple districts. However, it does not share a boundary with Boudh.

Step 1: Districts Bounded by Bargarh
- Nuapada: Located to the west of Bargarh, it shares a border with the district.
- Balangir: Situated towards the southwest, it also shares a boundary with Bargarh.
- Sonepur (Subarnapur): Lies to the south of Bargarh and shares a border.
- Boudh: This district is located further southeast and does not touch Bargarh.

Step 2: Analyzing the Given Options
- Option A: Nuapada (Incorrect – Nuapada shares a boundary with Bargarh.)
- Option B: Boudh (Correct – Boudh does not share a boundary with Bargarh.)
- Option C: Balangir (Incorrect – Balangir shares a boundary with Bargarh.)
- Option D: Sonepur (Incorrect – Sonepur shares a boundary with Bargarh.)

Conclusion: The district of Bargarh does not share a boundary with Boudh, making Option B the correct answer.