Explanation:

- Chorla Ghat Pass (Option 1): This is a scenic mountain pass located on the Western Ghats, connecting the states of Goa, Karnataka, and Maharashtra. It's known for its biodiversity and picturesque views but is not related to the Nilgiri hills.

- Malshej Ghat Pass (Option 2): This pass is also located in the Western Ghats, in Maharashtra. It's a popular destination for nature lovers and trekkers but is not associated with the Nilgiri hills either.

- Palakkad Gap (Option 3): This is a low mountain pass situated at the southern end of the Nilgiri Hills in the Western Ghats. It connects the Indian states of Kerala and Tamil Nadu, making it a significant geographical and cultural divide.

- Goran Ghat Pass (Option 4): This is not a commonly recognized pass associated with the Nilgiri hills or Western Ghats.