Explanation:

- Option 1: Lipu Lekh

- This is the correct option.

- Lipu Lekh Pass is located in Uttarakhand.

- It is used by pilgrims for the Kailash-Mansarovar Yatra.

- It serves as a route to travel into Tibet.

- Option 2: Pensi La

- Located in Jammu and Kashmir (now Ladakh).

- Known for connecting the Suru Valley with Zanskar Valley.

- Used primarily for local travel, not related to the Kailash-Mansarovar Yatra.

- Option 3: Khardung La

- Found in the Ladakh region.

- One of the highest motorable roads in the world.

- Used for reaching the Nubra Valley, not related to the pilgrimage.

- Option 4: Banihal Pass

- Located in Jammu and Kashmir.

- It's part of the Pir Panjal range.

- Primarily used for local travel, not significant for the pilgrimage.