When the following letters are rearranged, they form a part of the human body. Which one is it?

Question: When the following letters are rearranged, they form a part of the human body. Which one is it?

Solution:
By rearranging Y E K N I D, we get KIDNEY, which is an organ of the human body.

Looking more carefully at each option:
- LIVER (option ক) has an extra K that doesn't fit
- HEAD (option খ) has extra letters L and C

- KIDNEY (option গ) uses all the letters exactly once
- HEART (option ঘ) has extra letters L