Explanation:

- Monika is immediately left of Harsh, but not next to Sushant.

- Abha is right of Punit, and not at the ends.

- Harsh and Punit are Raji’s neighbors.

To solve:

Arrange Harsh left of Punit, as Raji is between them.

- Monika is left of Harsh, confirming Monika and Harsh are together.

- This ensures Abha is right of Punit, confirming Abha's position.

- With Punit and Abha present, it indicates Monika, Harsh, and Raji occupy the remaining slots.

Hence, Preeti sits at the extreme right end.