With reference to river Teesta, consider the following statements: 1. The source of river Teesta is the same as that of Brahmaputra but it flows through Sikkim.  2. River Rangeet originates in Sikkim and it is a tributary of river Teesta. 3. River Teesta flows into Bay of  Bengal on the border of India and Bangladesh. Which of the statements given above is/are correct?

Statement 1 is incorrect. Teesta River originates from the Pahunri (or Teesta Kangse) glacier and flows southward through the Sikkim Himalaya. where the Rangpo River joins, and where it forms the border between Sikkim and West Bengal. Whereas, The Brahmaputra river rises from Chemayundung glacier of the Kailash range near the Mansarovar Lake to the north of the Himalayas in the southwest Tibet region. Statement 2 is correct. The Rangeet is a tributary of the Teesta river, which forms a boundary between Sikkim and Darjeeling. The Rangeet river originates in the Himalayan mountains in West Sikkim district. Statement 3 is incorrect. Teesta flows through Sikkim, West Bengal, and joins Jamuna river at Fulhhari in Bangladesh.