Kamalasagar is an artificial lake in Tripura, India, constructed by King Dhanya Manikya of Tripura in the 15th century and is a popular spot for picnickers. A mela is held there every October during the Navaratri festival.
A vast lake on the edge of the border with Bangladesh was excavated by Maharaja Dhanya Manikya in 15th century. On the river bank of kamalasagar, there is a famous temple of Goddess Kali dating back to 16th century. It is one of the excellent picnic spots in the state with scenic beauty.