Sikkim

Changu Lake, also known as Tsomgo Lake, is a stunning glacial lake located in the Indian state of Sikkim, approximately 40 km from the capital city of Gangtok. Situated at an altitude of about 3,753 meters (12,313 feet) above sea level, this lake is famous for its breathtaking beauty and spiritual significance.

Baba Harbhajan Singh is a revered figure in Indian military folklore, often referred to as the "Hero of Nathula." He was an Indian army soldier who, after his death in 1968, is believed to have become a guardian spirit of the soldiers posted along the India-China border in the Sikkim region. His shrine, known as Baba Harbhajan Singh Mandir, is a popular pilgrimage site and tourist attraction near Nathula Pass, Sikkim.

Narula Pass is not a well-known geographical feature, and it seems there might be some confusion regarding its name. You might be referring to Nathu La Pass, one of the famous mountain passes in the Indian state of Sikkim that connects India and China. It is part of the ancient Silk Road and holds significant historical and geopolitical importance.