Consider the following pairs: Tributary River Main River 1. Chambal Narmada 2. Sone Yamuna 3. Manas Brahmaputra Which of the pairs given above is/are correctly matched?

Pair 1 is incorrect: the Chambal rises in the Malwa plateau and finally joins the Yamuna near Etawah (about 40 km west of Etawah), not the Narmada [1]. Pair 2 is incorrect: the Son (Sone) is one of the major tributaries of the Ganga, not of the Yamuna [2]. Pair 3 is correct: the Manas is a principal tributary of the Brahmaputra, joining the Brahmaputra system in Assam after draining parts of Bhutan and northeastern India [3]. Hence only pair 3 is correctly matched, so the right choice is option 4 (3 only).

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 3: The Drainage System of India > The Chambal > p. 14
2. [2] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 3: Drainage > The Ganga River System > p. 20
3. [3] https://knowindia.india.gov.in/profile/rivers.php