Kallazhagar temple covers an area of about 2 acres (0.81 hectares) and has a seven-tiered gopuram (gateway tower).
The temple in enclosed in a rectangular enclosure with huge granite walls.
The central shrine houses the image of the presiding deity, Uraga-mell-anayaan Perumaal in reclining posture on a snake bed similar to that of Srirangam Ranganathaswamy temple.
The images of Sridevi and Bhudevi are also housed in the sanctum.
There two life size images of Narasimha, the avatar of Vishnu.
One of them is shown holding the demon Hiranya and other slaying him.
There are separate shrines of Sundaravalli Nachiyar, Andal, Sudarshana and Yoga Narasimha around the shrines of the sanctum.

The temple houses some rare Vijayanagara sculptures similar to the ones present in Soundararajaperumal Temple, Thadikombu, Krishnapuram Venkatachalapathy temple, Srivilliputhur Divya Desam and Jalakandeswarar Temple, Vellore.

The architecture of the Azhagar temple corresponds to any of those of south Indian temples, with large gopurams and pillared mandapams.
The gopuram of the Karuppa swamy shrine depicts the passionate side of human relationship in the form of beautiful statues.
Apart from these, it also depicts the evolution of cultural aspects of the local society including a depiction of an Englishman in British police uniforms.

The main tower entrance (Mukya Gopuram) always remains closed, with the shrine of Karupana Swami.
The steps behind the closed door is worshipped as Patinettaam padi Karuppan (meaning, the black deity who occupies the eighteen steps).
There are various legends associated with it.
Only Once in a year, the doors are opened and Sudarshana Chakra (Chakrathaazhvar), the famous Vishnu's wheel, passes over through the open door.
This is a centuries-old practice, where even the festive deity of the presiding deity is not allowed to pass through the doors.

Some research scholars opine that this was earlier a Jain temple, (the Somaskanda Vimanam for instance) but was later converted into a Vishnu temple.
During archaeological excavations, many Jain caves and inscriptions were found in the same hill around this temple.
However, the famous Vaishnava works in Tamil, belonging to the early 4th to 6th Centuries point that to this temple as a Vishnu temple.
The Sangam age Silapadikaram belonging to 3rd Century AD, points out to this temple as a Vishnu temple.
During 2013, while cleaning the area in front of Karupana Samy shrine, a big Teppakulam was discovered, filled with sand and covered with dense undergrowth.
Kallazhagar temple covers an area of about 2 acres (0.81 hectares) and has a seven-tiered gopuram (gateway tower). The temple in enclosed in a rectangular enclosure with huge granite walls. The central shrine houses the image of the presiding deity, Uraga-mell-anayaan Perumaal in reclining posture on a snake bed similar to that of Srirangam Ranganathaswamy temple. The images of Sridevi and Bhudevi are also housed in the sanctum. There two life size images of Narasimha, the avatar of Vishnu. One of them is shown holding the demon Hiranya and other slaying him. There are separate shrines of Sundaravalli Nachiyar, Andal, Sudarshana and Yoga Narasimha around the shrines of the sanctum.
The temple houses some rare Vijayanagara sculptures similar to the ones present in Soundararajaperumal Temple, Thadikombu, Krishnapuram Venkatachalapathy temple, Srivilliputhur Divya Desam and Jalakandeswarar Temple, Vellore.
The architecture of the Azhagar temple corresponds to any of those of south Indian temples, with large gopurams and pillared mandapams. The gopuram of the Karuppa swamy shrine depicts the passionate side of human relationship in the form of beautiful statues. Apart from these, it also depicts the evolution of cultural aspects of the local society including a depiction of an Englishman in British police uniforms.
The main tower entrance (Mukya Gopuram) always remains closed, with the shrine of Karupana Swami. The steps behind the closed door is worshipped as Patinettaam padi Karuppan (meaning, the black deity who occupies the eighteen steps). There are various legends associated with it. Only Once in a year, the doors are opened and Sudarshana Chakra (Chakrathaazhvar), the famous Vishnu's wheel, passes over through the open door. This is a centuries-old practice, where even the festive deity of the presiding deity is not allowed to pass through the doors.
Some research scholars opine that this was earlier a Jain temple, (the Somaskanda Vimanam for instance) but was later converted into a Vishnu temple. During archaeological excavations, many Jain caves and inscriptions were found in the same hill around this temple. However, the famous Vaishnava works in Tamil, belonging to the early 4th to 6th Centuries point that to this temple as a Vishnu temple. The Sangam age Silapadikaram belonging to 3rd Century AD, points out to this temple as a Vishnu temple. During 2013, while cleaning the area in front of Karupana Samy shrine, a big Teppakulam was discovered, filled with sand and covered with dense undergrowth.
Kallazhagar temple