Someshwar Mahadev Temple. Triveni Sangam, a religious centre in Allahabad is the confluence of the rivers the Ganga, the Yamuna and the mythical Saraswati. The ancient Someshwar Mahadev Temple, also known as Shivkoti temple, is located in Naini village near Sangam on the banks of the River Yamuna opposite to Allahabad Fort. The Someshwar Mahadev temple is dedicated to Lord Shiva. Here the Lord is worshipped in the form of Ekadash Rudra, one of the seventeen forms of Lord Shiva and is the most important of the eight gods of Prayag.