Explanation: To understand the context of the question, it is essential to know the geographical layout of southern India. Kerala is the southernmost state in India, located on the Malabar Coast in the southwestern region of the country. It is bordered by the Arabian Sea to the west and the Western Ghats to the east. The state is known for its lush green landscapes, backwaters, and a network of rivers and dams that are crucial for its economy and ecology.
The Periyar Dam, also known as the Periyar Dam or Mullaperiyar Dam, is a significant water body located in Kerala. It is situated in the Western Ghats and is a major hydroelectric project. The dam is not only important for power generation but also plays a crucial role in irrigation and water supply to the region. The Periyar Dam is a landmark in Kerala's geography and is often associated with the state's natural beauty and water resources.
The question asks for a dam situated in the most southern state of India. Among the options provided, only the Periyar Dam in Kerala fits this criterion. The other options mention dams in Karnataka and Tamil Nadu, which are not the southernmost states in India. The Tunga Bhadra Dam in Karnataka is located in the northern part of the state and is not relevant to the southernmost state context. Similarly, the Periyar Dam in Tamil Nadu is incorrect because the Periyar Dam is actually located in Kerala.
In conclusion, the Periyar Dam in Kerala is the correct answer as it is the only dam mentioned in the options that is located in the southernmost state of India. This question tests the geographical knowledge of the southern states of India and the location of major dams within these states.