Explanation:

- Option 1: Madhya Pradesh

- Madhya Pradesh is home to several national parks, including Kanha and Bandhavgarh, known for their rich biodiversity and tiger populations. However, Silent Valley National Park is not located here.

- Option 2: West Bengal

- West Bengal features numerous wildlife reserves such as Sundarbans National Park, renowned for its unique mangrove ecosystem and Royal Bengal Tigers. Silent Valley National Park is not situated in West Bengal.

- Option 3: Kerala

- Correct Answer: Silent Valley National Park is located in Kerala. It is part of the Nilgiri Biosphere Reserve and is recognized for its silent, serene tropical rainforest, which is rich in biodiversity and largely undisturbed by human activity.

- Option 4: Uttarakhand

- Uttarakhand hosts notable parks like Jim Corbett National Park and Nanda Devi National Park. While these areas are famous for their natural beauty and variety of wildlife, Silent Valley National Park is not found here.