The correct answer is option 3, Loktak Lake. Located in the state of Manipur in North-East India, Loktak Lake is known to be the largest freshwater lake in the region. It is famous for its floating phumdis, which are vegetation-covered circular floating islands. The lake is home to a variety of flora and fauna, including the endangered Manipur brow-antlered deer. It also plays a significant role in the livelihood of the local communities, who depend on it for fishing and agriculture. Dal Lake (option 1) is a famous lake in Srinagar, in the Indian state of Jammu and Kashmir. Chilika Lake (option 2) is the largest brackish water lake in India and is located in the state of Odisha. Tsomoriri Lake (option 4) is a high-altitude lake in Ladakh, in the Indian state of Jammu and Kashmir.