The correct answer is option 3, Kangchendzonga National Park, which is not a World Heritage Site.
To better understand why this option is correct, let`s dissect the other options.
Option 1, Kaziranga National Park, is a World Heritage Site located in Assam, India. It is known for its significant biodiversity, including the endangered one-horned rhinoceros.
Option 2, Sundarbans National Park, is another World Heritage Site located in Bangladesh and India. It is the largest contiguous mangrove forest in the world and is home to numerous endangered species, including the Bengal tiger.
Option 4, Keoladeo National Park, also known as Bharatpur Bird Sanctuary, is a World Heritage Site located in Rajasthan, India. It is a significant bird breeding and feeding ground, attracting migratory birds from as far as Siberia.
Therefore, the correct answer is option 3, as Kangchendzonga National Park is not included in the list of World Heritage Sites. However, it is important to note that although the provided answer is generally correct, the World Heritage Site listings can change over time, so it`s advisable to verify the current status.