Step 1: Understanding the Concept:
Familiarity with the locations and headquarters of key national agricultural research institutes under ICAR is essential for agricultural sciences candidates.
Step 2: Detailed Explanation:
Let us locate and match each of the given ICAR institutes:
IIPR stands for the Indian Institute of Pulses Research, which is headquartered in Kanpur, Uttar Pradesh.
Thus, (A) matches with (IV).
IIVR stands for the Indian Institute of Vegetable Research, located in Varanasi, Uttar Pradesh.
Thus, (B) matches with (III).
IISR stands for the Indian Institute of Sugarcane Research, situated in Lucknow, Uttar Pradesh.
Thus, (C) matches with (I).
IIRR stands for the Indian Institute of Rice Research (formerly Directorate of Rice Research), which is located in Hyderabad, Telangana.
Thus, (D) matches with (II).
This matching perfectly aligns with (A)-(IV), (B)-(III), (C)-(I), (D)-(II).
Step 3: Final Answer:
The correct match is (A) - (IV), (B) - (III), (C) - (I), (D) - (II).