This Mandir is situated at the centre of Shriwardhan city, Raigad. The temple is located in an open ground along the main road. It is built on a rise and steps lead up to it. There is a modern concrete structure in front of the old tiled sanctum, built in a typical Konkani fashion.The Goddess Somjai combines in herself the four deities–Shiva, Bhavani, Vasuki and Nandi.
Somjai Devi Mandir is known for its miraculous healing power. It is believed that person with snake bite can be cured when taken to Somjai Devi Mandir.