The Deval Nagalinga is believed to be very powerful with miraculous aspects for assisting the adherent worshipers of this particular Lord. It is a unique form of Lord Shiva's lingam that is worshipped by his adherent devotees and pilgrims. It is a rear type of Hindu temple that is wholeheartedly dedicated to Lingam with Naga devatha. These kinds of Lord Shiva's shrine are just few in numbers in Northern and Southern part of India. This temple is visited by devotees who are facing lot of hardship in their personal and professional life. According to the religious scholars and local legends, a person suffers a lot in life because of certain doshams or sins committed in their past life. Those who are seeking remedies from their serious issues and problem in their personal and professional life can conduct dosham nivarana pooja with great faith and devotion. This particular pooja solves the issues and problems of life within a short span of time schedule. This enables a person to lead a happy personal life and prosperous professional life ahead. The priests of this temple are highly qualified and have vast experience in the religious matters. They perfectly advise the devotees and pilgrims to indulge in the right kind of poojas, homams, yagnas and other religious activities and functions for proper remedies in life. It is purely based on their advice, devotees and pilgrims indulge in religious activities and functions at this shrine. It is to be noted that local peoples from the neighboring villages and sub-towns visit this temple by foot as a part and parcel of religious ritual.
Sri Deval Nagalinga temple of Tandoor is purely based on the architectural styles and pattern of South Indian Hindu temples. There are perfect shades of local and regional features in this temple structures. The idol of Lingam is larger in size when compared with other Shiva lingam temples in the state of Telangana and Andhra Pradesh. The specialty of this shrine is that the idol of Lingam has Naga devatha or Holy serpent accompanied with it. It is really a rear idol that is wholeheartedly worshipped with great devotion and faith by the adherent devotees and pilgrims. The lingam is situated on the raised platform of the main sanctum. The Naga devatha or holy serpent is clearly visible on the Lingam. The prayer hall in the main sanctum is aptly suitable for conducting various types of religious functions and activities in a spiritual manner.
Sri Deval Nagalingam temple is known for religious manner celebration of Mahashivarathri with active participation of local people, adherent devotees and pilgrims with family members, relatives and close friends. Most of the religious activities, functions, poojas, rituals, homams and yagnas are conducted according to the Vedic rules and regulations.