According to the nomenclature of the Nag Devta temple, it is rightly guessed to be the temple of God of snakes. Sited at the distance of 6 kms from Mussoorie, on the Cart Road, the beautiful temple is one of the oldest temples in the region. The place holds great importance in the heart and life of the local people, so it is visited by the local devotees almost daily or as soon as possible. The beauty and charm of the temple is spectacular on Nag Panchmi. On this auspicious occasion, the temple is adorned at its full enchant. Therefore, it is also one of the must-see attractions in Mussoorie.