The correct option is Saharanpur.
Explanation
In human geography, urban settlements are often classified based on their dominant function or economic activity. While many towns perform multiple functions, certain towns are known for specific specializations such as administration, industry, defense, or trade and commerce.
Analysis of Options:
- Saharanpur (Correct): It is classified as a Commercial Town. These towns specialize in trade and commerce. Other examples include Satna and Kolkata.
- Bhilai (Incorrect): It is an Industrial Town. These towns primarily evolve around manufacturing and industrial activities (e.g., Bhilai Steel Plant). Other examples include Jamshedpur, Salem, and Modinagar.
- Digboi (Incorrect): It is a Mining Town. These towns develop in mineral-rich areas to support extraction activities. Digboi is famous for its oil fields. Other examples include Raniganj, Jharia, and Ankaleshwar.
- Jalandhar (Incorrect): It is a Garrison (Cantonment) Town. These towns emerged primarily for defense and military purposes. Other examples include Ambala, Mhow, and Udhampur.
Key Takeaway:
Towns are functionally classified based on their primary economic driver; Saharanpur is distinctively categorized as a commercial center, whereas Bhilai, Digboi, and Jalandhar represent industrial, mining, and garrison functions respectively.