Article Detail Which is Longest Dam in India ? Answer: Hirakod Dam (Orissa) Similar Questions : 1. Which is the shortest day in the year ? Answer: December 22 2. Which is the state largest by area in India ? Answer: Rajasthan 3. Which is the longest River in the World ? Answer: Nile 4. Which is largest Delta of India ? Answer: Sundarban (W. Bengal) 5. Which is smallest planet ? Answer: Mercury 6. Which is longest river in world ? Answer: Nile, Africa 7. Which is the Largest lake of the world ? Answer: Caspian Sea (371,000 sq km) Read more from - Longest and Largest