Step 1: Understanding regional centers.
Regional centers are established to coordinate activities, programs, and administrative operations within a specific geographical region. The Asia-Pacific regional center manages activities related to countries located in the Asia-Pacific region.
Step 2: Location of the Asia-Pacific center.
The Asia-Pacific regional center has been established in
New Delhi, India. Being the capital city, New Delhi serves as an important administrative and international coordination hub for various organizations operating in the Asia-Pacific region.
Step 3: Comparison with options.
- (A) New Delhi: Correct. The Asia-Pacific regional center is located in New Delhi.
- (B) Mumbai: Incorrect. Mumbai is a major economic center but not the location of this regional center.
- (C) Calcutta: Incorrect. Although historically important, the regional center is not located here.
- (D) Madras: Incorrect. Madras (Chennai) is not the location of the Asia-Pacific regional center.
Step 4: Conclusion.
Thus, the Asia-Pacific regional center has been established in New Delhi.
Final Answer: New Delhi.