Match the railway zones in column A with their headquarters in column B
| Column A (Railway zones) | Column B (Headquarters) |
| 1. Central | a. New Delhi |
| 2. Northern | b. Mumbai CST |
| 3. Eastern | c. Chennai |
| 4. Southern | d. Kolkata |
1-b, 2-a, 3-d, 4-c
1-b, 2-d, 3-a, 4-c
1-a, 2-b, 3-d, 4-c
1-b, 2-a, 3-c, 4-d