Article Detail Which is Longest Dam in India ? Answer: Hirakod Dam (Orissa) Similar Questions : 1. Which is largest Dam in World ? Answer: Three Gorges (China) 2. Which is the longest River in the World ? Answer: Nile 3. Which is the lightest gas ? Answer: Hydrogen 4. Which is the largest Mosque in India ? Answer: Jama Masjid (Delhi) 5. What is the name of brightest star ? Answer: Sirius 6. Which is smallest continent of world ? Answer: Australia 7. Which is the highest dam in India ? Answer: Tehri Dam on Bhagirathi River in Uttarakhand (Height of 260 metres) Read more from - Longest and Largest