Understanding the Code Transformation
To decode how "NIDHI" is transformed into "LQVRQ", we first need to analyze the letter shifts involved in this coding mechanism. Each letter of "NIDHI" seems to undergo a specific transformation to arrive at "LQVRQ".

Step-by-Step Analysis
- **N to L**: The first letter 'N' (14th letter in the alphabet) is shifted back by 2 to become 'L' (12th letter).
- **I to Q**: The second letter 'I' (9th letter) is shifted forward by 8 to become 'Q' (17th letter).
- **D to V**: The third letter 'D' (4th letter) is shifted forward by 18 to become 'V' (22nd letter).
- **H to R**: The fourth letter 'H' (8th letter) is shifted forward by 10 to become 'R' (18th letter).
- **I to Q**: The fifth letter 'I' (9th letter) follows the same transformation as the second letter and shifts forward by 8 to become 'Q'.
This reveals a pattern of alternating shifts: the first and fifth letters shift back, while the second, third, and fourth letters shift forward by varying amounts.

Applying the Code to "CHINU"
Now, we will apply this transformation pattern to "CHINU":
- **C**: Shift back by 2 → A
- **H**: Shift forward by 8 → P
- **I**: Shift forward by 18 → A
- **N**: Shift forward by 10 → X
- **U**: Shift forward by 8 → C

Final Coded Output
Thus, "CHINU" would be coded as "APAXC".
This method provides a systematic way to decode and encode words using the observed letter shifts.