Assam is a well-known Northeastern state famed for its "Blue Hills and Red River". It is the entryway to the Northeastern states, with a total size of 78,438 km2. Assam is surrounded by seven Indian states as well as the nations of Bhutan and Bangladesh. Guwahati is Assam's capital and also the state's most developed metropolis. Assam's main attractions are the heart-warming tea estates and the Brahmaputra River. Assam is also home to 5 national parks and 18 wildlife sanctuaries, making it rich in biodiversity. Assam's indigenous are known as Asomiya, which is also the state's predominant language, and Bihu is the state's largest celebration.