Tirumala Dhruva Bera is the name given to the deity of Lord Venkateswara in Tirumala Venkateswara Temple, Andhra Pradesh. Dhruva Bera is the official terminology used for the main deity of a temple with the exact translation being The Immobile image and as the name suggests, the deity is stationary and other deities are used for pujas, sevas that requires the deity's presence outside the garbha griham (sanctum sanctorum). Other terms used for Dhruva Bera include Moolavar or Moola Virat (Main Deity), Achala (Stagnant).
Tirumala Dhruva Bera is considered to be Swayambhu - self-manifested and not created by human. According to Sri Venkatachala Mahatyam, Lord Venkateswara came to reside in this sacred spot to provide blessings to devotees in the Kali Yuga. The deity does not conform to the agamas (rules) for making a deity, thus furthering the belief that the temple's deity is Swayambhu.
The dhruva bera stands approximately ten feet tall< and stands a platform of about 18 inches. The platform follows a simple lotus design and the details of the any inscription on the platform is unknown to anyone except the temple's archakas (priests). The platform is usually covered in tulsi leaves except on Thursday afternoon and during Friday abhishekam.
The face of the deity has exquisite features, with the nose neither flat nor prominent. The eyes are prominent and has the outline of 'namam' though it is not projected out of the deity . The eyes are partially covered with the namam made of pachakarpuram (raw camphor). The size, shape and details of the namam are governed by strict rules laid by the Vaikhanasa agamam. The deity has a self manifested crown up to the forehead and jatajuta (curly hair) resting on the shoulder. The chest is estimated to be between 36 and 40 inches in width and the waist would be between 24 and 27 inches, though there has never been a formal measurement of these statistics. Since the upper body is bare, features of the chest are prominently seen with the main feature being the image of a sitting Sridevi carved on the right side of the chest. The image of lakshmi is integral to the deity . The deity has 4 arms. The upper arms in the position to hold his weapons though the Chakram and Conch are not integral to the deity . The removable Sudarshana chakram is placed on the upper right arm while the Panchajanya - Vishnu's conch is placed on the upper left arm. The lower right arm is in the Varada Hasta pose - palms facing outward towards the onlooker to signal boon giving nature of the lord. The lower left arm is in the Katyavalambita pose - palm facing the lord with the thumb nearly parallel to the waist. The deity is seen with a dhoti worn waist downwards. Both the knees are slightly bent forward to indicate that the Lord is willing to come to the devotee's rescue. The shoulder of the lord has marks resembling scars made by constant wearing of bow and pack of arrows though the deity is not in the Tribhanga pose (unlike Tirumala Rama deity )