Nagvasuki temple is located on the banks of the river Ganga, in Daraganj on the northern side of the railway bridge. The temple is dedicated to Vasuki, the king of serpents. On the occasion of Nag Panchami day every year, a fair is held near the temple. A large idol of Bishmapita is seen in a reclined position near the temple.
In Matsya Puran it is mentioned that it extends from Pratishthana to the pond of Vasuki and as fa as the abodes of the Nagas (Kumbala, Ashvatara and Bahumulaka), places not identified due to the lack of evidence. That Vasuki is Nag Vasuki Temple in Daraganj. It is on the bank of Ganga and an annual fair is held on occasion of Nag Panchami.
The temple is unique in the sense that Nag Vasuki is the main deity of the temple and its stone idol is located in the centre. It is believed that around 10th century an old temple must have existed here. A Maratha king Shridhar Bhonsle had constructed the present temple. Construction of the temple reveals that the temple is not older than 18th century and is a fine example of medieval architecture. An annual fair is held here on the occasion of Nag Panchami.