Explanation:

- King Lalitaditya Muktapida was a ruler from ancient India.

- He belonged to the Karkota dynasty.

- His reign is most noted over Kashmir during the 8th century.

- Option 4: Kashmir is the correct answer.

- Gujarat, Sikkim, and Kerala were not under his dominion.

- Gujarat is a region in western India and was historically ruled by various local kingdoms.

- Sikkim is in northeast India, rather distant from Lalitaditya’s influence.

- Kerala is located in the south of India, again outside the reach of his rule.