| Option | a-4, b-1, c-3, d-2 | incorrect |
| Option | a-3, b-4, c-1, d-2 | correct |
| Option | a-1, b-3, c-2, d-4 | incorrect |
| Option | a-2, b-1, c-4, d-3 | incorrect |
| Solution | The Torsa River is joined by its tributaries Malengi, Bela, and Sunjai. The Damodar River is fed by the tributaries Barakar, Konar, Bokaro, and Ayar. The Mahananda River is flanked by the tight bank tributaries Kalindi, Balasan, and Mechi, while its left bank tributaries include Nagar, Tangon, and Punarbhaba. The Jaldhaka River receives contributions from its tributaries Daina, Birukhola, Bindukhola, and Nakshalkhola. | |
