The correct answer is option 1, Nainital. Nainital is known as the “Lake District of India” because it is located in the Indian state of Uttarakhand and is famous for its beautiful lakes. Nainital is home to Naini Lake, which is the most prominent lake in the region. The town is situated in a valley surrounded by mountains and offers stunning views of the surrounding scenery. The presence of numerous lakes in Nainital makes it a popular tourist destination for those seeking a peaceful and scenic retreat. The serene lakes, coupled with pleasant weather, attract tourists from all over India, making Nainital the perfect destination for nature lovers and adventure enthusiasts.