Explanation:

- Chandigarh:

- Chandigarh is a Union Territory and does not have its own representation in the Council of States, also known as the Rajya Sabha.

- Lakshadweep:

- Lakshadweep is a Union Territory but does not have representation in the Rajya Sabha.

- Andaman and Nicobar Islands:

- This Union Territory also lacks representation in the Council of States.

- Puducherry:

- Puducherry stands out among the union territories as it has representation in the Rajya Sabha.

- It is allowed due to its legislative assembly and unique status.

Puducherry is the correct answer.