Nagdaha is a natural pond located in Dhapakhel Village Development Committee (VDC) of Lalitpur District, in the Kathmandu Valley, Nepal. The area of the lake is approximately five hectares and the main inflow source is a natural spring, while the water flows out to form two small wetlands.
Like many other water bodies and physical features of Kathmandu, the Nagdaha is also steeped in legends.Some of the Legend regarding Nagdaha are as follows:
In the days of yore Lord Shiva used to reside at Nagdaha. The Goddess Bajrabarahi was worried. She thought if Lord Shiva stays in Nagdaha no one will worship her. Using her divine powers she transformed herself into a pig and started making grunting noises. Pigs are traditionally associated with dirt and squalor and hearing the grunting pig Lord Shiva thought the lake was a dirty place. He set out in search of cleanliness and tranquility and settled in Gosainkund Lake in Rasuwa district.
A female serpent stays in Nagdaha and a male serpent in Taudaha. Every year during the rainy season the male serpent visits Panauti to participate in a festival (jatra). As Nagdaha is on the way to Panauti the male serpent visits the female during both the onward and return journey, accompanied by heavy rains and thunder that are common during this season. In Nepal, the snakes (nagas) are traditionally believed to bring good rains and prosperity to the country.
Yet another legend tells that the great Manjushree drained the Kathmandu Valley with a clean sword cut through the Chobhar hill. After that, the ‘naga’, inhabitants of the vast lake were allowed to live in various small lakes in the newly created valley. Basuki Naga, for example, was allowed to stay in Nagdaha.