1. Which is the longest river in India? 2. Which river is famous for the Sundarbans Delta? 3. Which river is known as 'Dakshin Ganga'? 4. Which is the only major river that flows entirely within India from west to east? 5. The Krishna river originates from which state? 6. The Ganga river originates from which glacier? 7. Which river is called the 'Sorrow of Bengal'? 8. Which river is known as the 'Old Ganga' or 'Vridha Ganga'? 9. Which is the largest peninsular river in India? 10. The Yamuna river is a tributary of which river?