An ancient temple of Lord Shiva, also known as Aparneswar is located near Mantalai Lake, which itself is 19 km from Patnitop. This is the place where mother Parvati was born and got married to Lord Shiva. The main shrine is very small and having an idol of Parvati as kanya. Another set of idols of Shiva and Parvati together and Shiva, Parvati and Ganesha is also found. However, the shiva lingam is the main idol of the temple.
There are two idols of Nandi, the bull god facing the shrine. One divine rock (patthar) related to the wedding of Parvati and Shiva can also be spotted in this shrine.