In the question, institutes are to be matched with their respective locations on a hypothetical map. The correct answer is option 1.

A. Central Drug Research Institute is matched with 4. This indicates that location 4 on the map corresponds to the location of the Central Drug Research Institute.

B. National Atlas and Thematic Mapping Organisation is matched with location 3, implying that the National Atlas and Thematic Mapping Organisation resides at location 3.

C. National Institute of Ocean Technology is matched with 2. This line implies that the National Institute of Ocean Technology is located at position 2 on the given map.

D. Temperate Forest Research Centre is matched with 6. This means that the Temperate Forest Research Centre is situated at place 6.

Other options are incorrect as they do not correctly match the research institutes to their respective locations on the map.