Concept:
Use the final seating arrangement derived from given conditions.
Step 1: Recall arrangement.
From previous question:
\[
{Sachin — Shyam — Ravi — Rajiv — Martin}
\]
Step 2: Identify the middle position.
There are 5 people, so the middle is the 3rd position.
\[
{3rd position} = {Ravi}
\]
Hence, Ravi is in the middle.