Explanation:

- The Maru Mahotsav, also known as the Desert Festival, is celebrated in Jaisalmer.

- This vibrant cultural festival typically takes place in February every year.

- It showcases Rajasthani folk music, dance, camel races, and even the Mr. Desert contest.

- Jaipur, the capital of Rajasthan, hosts the famous *Jaipur Literature Festival* and has its own unique festivals but not the Maru Mahotsav.

- Leh is known for events like the *Hemis Festival*, highlighting the culture of Ladakh.

- Srinagar, in Kashmir, is famous for the *Tulip Festival* and other cultural celebrations unique to the region.

Your selected option:

- Option 3: Jaisalmer