Correct Answer: (b) Meerut
Solution:Central Potato Research Institute is situated in Shimla (Himachal Pradesh). It's seven regional research stations are located in different potato producing zones such as Kufri-Faagu (Himachal Pradesh), Modipuram (Meerut, Uttar Pradesh), Jalandhar (Punjab), Gwalior (Madhya Pradesh), Patna (Bihar), Shillong (Meghalaya) and Ooty (Tamil Nadu).