The question asks which of the given pairs of institutes and their locations are correctly matched. Let`s analyze each option:

Option 1: 1 only

This means that only the first pair, Central Food Technological Research Institute in Mysore, is correctly matched. This option implies that the other two pairs, Indian Veterinary Research Institute in Patiala and National Institute of Nutrition in Pune, are not correctly matched.

Option 2: 2 and 3 only

This option suggests that the second and third pairs, Indian Veterinary Research Institute in Patiala and National Institute of Nutrition in Pune, are correctly matched, while the first pair, Central Food Technological Research Institute in Mysore, is not correctly matched.

Option 3: 1 and 3 only

This option states that the first and third pairs, Central Food Technological Research Institute in Mysore and National Institute of Nutrition in Pune, are correctly matched, whereas the second pair, Indian Veterinary Research Institute in Patiala, is not correctly matched.

Option 4: 1, 2 and 3

This means that all three pairs are correctly matched.

Given that the correct answer is option 1, it implies that only the first pair, Central Food Technological Research Institute in