Where is the National Dope Testing Laboratory located?

The correct option is New Delhi.

Step-by-Step Explanation:
1. The National Dope Testing Laboratory (NDTL) is a premier sports science testing laboratory established by the Government of India.
2. Its primary function is to carry out sports doping control testing on athletes' samples, ensuring fair play and conformity with the guidelines of the World Anti-Doping Agency (WADA).
3. The laboratory operates under the administrative control of the Ministry of Youth Affairs and Sports, Government of India.
4. It is physically located at the Jawaharlal Nehru Stadium Complex in New Delhi, India.