Step 1: Concept Analysis:
Linear arrangement with directional clues. Place persons step by step.
Step 2: Solution Approach:
Roshesh and Urus at the two extremes (positions 1 and 8). Their immediate neighbors are Quila and Tanaav. Pravesh is 4th to right of Tanaav. Wahaab is immediately left of Pravesh. Wahaab is 2nd right of Smitha. Testing: Urus at 1, Roshesh at 8, Tanaav at 2 (neighbor of Urus), Quila at 7 (neighbor of Roshesh). Pravesh = Tanaav + 4 = position
6. Wahaab = Pravesh $-$ 1 = position
5. Smitha = Wahaab $-$ 2 = position
3. Pravesh(6) is immediate side of Quila(7) $\checkmark$. Remaining: Vihaaz at position
4. Neighbors of Wahaab(5) = Vihaaz(4) and Pravesh(6).
Step 3: Conclusion:
The immediate neighbors of Wahaab are Vihaaz and Pravesh.