Baba Koteshwarnath Temple is situated in Village Main, Block Belaganj, District Gaya. The temple is situated on the confluence of the river Morhar & Dargha in Gaya, is famous for highly sacred Lord Shiva Temple. Located 90km south of Patna, Koteshwarnath temple is believed to have been build around 8th century AD.

Koteshwarnath temple's sanctum is carved in a single piece of red stone and within it is installed a large sized Shivalinga with around 1,008 miniature Shivlingas around 1200 years back.

It says that Vanasur's Main & DevKund was situated in a deep forest. Usha used to visit the temple to offer prayers during which Lord Shiva appeared & told her to establish a Sahashtra Linga to get her wish full filled. After that Usha established the Shiva Linga. In result of that Lord Shiva granted her wish and she got married with Aniruddha, grandson of Lord Krishna her husband with whom she went on to live her life.

The place is known as “Shiv Nagar” in ancient times. There is a reference that Sahastra Shiv Ling idol was established at the end of Dwapar Yuga. This Shiv Ling was established by Usha, daughter of King Vanasur of Sonitpur. It's a belief that a pilgrimage to this place is powerful enough to full fill all the wishes and desires of the one who comes here. Quite Evidently, Every year In the month of Saawan devotees throng this temple to offer prayers.

It says that Vanasur's Main & Dev Kund was situated in a deep forest. Usha used to visit the temple to offer prayers during which Lord Shiva appeared & told her to establish a Sahashtra Linga to get her wish full filled. After that Usha established the Shiva Linga. In result of that Lord Shiva granted her wish and she got married with Aniruddha, grandson of Lord Krishna her husband with whom she went on to live her life.

Usually all the holy places of Lord Shiva have large number of devotes coming all the year round but during the holy months of Saawan this increases. It is well connected through Pitch road from the sides of Makhdumpur, Shakurabad-Ghejan, Tekari and Bela Rampur.

Architecture of Koteshwarnath Temple –

The temple is east facing. The main components of the temple are a Garbhagriha (sanctum), a stambh-mandap (pillared haal) and Mukhmandapa (frontal porch). The temple has a new Shikar (spine) recently constructed in the South Indian style popularly known as “Dravidian Style”. However its internal structures are still preserved in original by and large partial changes have been made in its Garbhagriha and Mukhmandapa. The temple is basically built in bricks and granite stones which is evident in it’s entrance, antral (vestibule) and pillared hall.