Which of the following tributaries does not meet the Brahmaputra from the north direction?

Correct answer: (e) None of the above

Explanation

The Brahmaputra originates on the Tibetan Plateau near Lake Manasarovar and flows eastward along the Himalayas. Tributaries joining it from the northern side include Subansiri, Manas, Belsiri, Buroi and Beki. All three listed rivers join from the north, so none of the options fits: the answer is (e).