The district bordering the most number of other districts in Odisha is:

Ganjam
Angul
Mayurbhanj
Sambalpur

The correct answer is: d) Sambalpur.

Sambalpur is a district in the Indian state of Odisha. It is the second-largest district in Odisha by area, after Koraput. Sambalpur is bordered by the districts of Deogarh, Angul, Jharsuguda, Sundargarh, Mayurbhanj, Keonjhar, and Bargarh.

The district is known for its rich mineral resources, including coal, iron ore, and bauxite. Sambalpur is also home to a number of historical and cultural sites, including the Hirakud Dam, the Sambalpur Fort, and the Raghunath Temple.

The following are the other options in the question:

  • a) Ganjam is a district in the Indian state of Odisha. It is the third-largest district in Odisha by area, after Koraput and Sambalpur. Ganjam is bordered by the districts of Gajapati, Rayagada, Koraput, Nabarangpur, Kalahandi, and Puri.
  • b) Angul is a district in the Indian state of Odisha. It is the fifth-largest district in Odisha by area, after Koraput, Sambalpur, Ganjam, and Sundargarh. Angul is bordered by the districts of Deogarh, Sambalpur, Jharsuguda, Sundargarh, and Keonjhar.
  • c) Mayurbhanj is a district in the Indian state of Odisha. It is the fourth-largest district in Odisha by area, after Koraput, Sambalpur, and Ganjam. Mayurbhanj is bordered by the districts of Keonjhar, Sundargarh, Jharsuguda, Sambalpur, Balangir, Kalahandi, and Rayagada.