Tripura has many holiest and attractive places for the people of in and around, one of the most attractive places of Tripura is the Kalyan Sagar Pond which is a large lake on the side of Tripura Sundari Temple or Mahabari Temple. The Kalyan Sagar Pond built him close to home to the tortoise that is deeply revered by the devotees of the temple. This venerable temple is also referred to as the Koorma (tortoise) Peeth. Dewali is celebrated with great pomp here out of all the famous places. The lake covers a large amount of land it nearly covers more than five acres and the length of almost 224 yards and the width is almost 160 yards. The Kalyan Sang Lake was dug up after Tripura Sundari Temple was established in 1501 AD and the lake was dug up after 124 years.
In the Kalyan Sangar Lake many kinds of fishes and other aqua species are found and the rare species of tortoise can also be seen but fishing is prohibited in the lake since it is believed to be sacred by the devotees. Though fishing is prohibited people can offer rice and biscuits to the fished and the Kalyan Sagar Lake is one of the many lakes in Udaipur that makes it the lake city. From the Kalyan Sagar one of the famous Mata Tripuraswari Temple is just 3 kilometers away on the eastern side towards south from Udaipur town of Tripura. The Matabari Temple Committee is cementing the banks of Kalyan Sagar Lake for the last 2-3 years. The Matabari temple upward to the hillock adds to the beauty of the Kalyan Sagar Lake. The lake is considered sacred and devotees worship the fishes and tortoises present here. But in the past years, the water of the lake became acidic due to the destruction of an ecosystem around the lake and it has resulted in the death of tortoise the tortoise was also not able to lay eggs after the construction of the walls around the water body. Since the year of 1998 carrying plastic poly bags is totally banned in and around Matabari Temple. But we can still see the polythene and plastics bags in the bed of the lake since the visitors, tourists, pilgrims, devotees are still throwing plastic carry bags every day into the lake even after the banned of using plastics.