Khandong Dam. Khandong Dam is the largest Dam in Assam,it is situated 12km away from Umrangso Town, near to a beautiful Saidima Daogah Waterfall in Dima Hasao District of Assam. 🎥jepsen_leo #assamtourism #Haflong #DimaHasao #khandongdam #beautifulnortheast #northeastindia #lovenature