gold (no longer). The sikhara at the top is cupola-shaped and weighs 25 tons. Each storey of this tower is decorated with kutas and salas. The shrinking squares tower architecture of this temple differs from the tower at the Chola temple at Gangaikondasolisvaram, because this is straight in contrast to the latter which is curvilinear. The temple's sri-vimana magnitude has made it a towering landmark for the city. The upper storey corridor wall of the aditala is carved with 81 of the 108 dance karanas – postures of Natya Sastra. This text is the basis of the Bharathanatyam, the classical dance of Tamil Nadu. The 27 unrepresented karanas are blank blocks of stone, and it is unclear why these were not carved. The 81 postures carved suggest the significance of this classical Indian dance form by early 11th century. The garbhagriha is square and sits on a plinth. This is moulded and thick. It consists of upapitham and adhishthanam, respectively 140 cm and 360 cm thick. Mandapa The two mandapa, namely maha-mandapa and mukha-mandapa, are square plan structures axially aligned between the sanctum and the Nandi mandapa. The maha-mandapa has six pillars on each side. This too has artwork. The Vitankar and Rajaraja I bronze are here, but these were added much later. The maha-mandapa is flanked by two giant stone dvarapalas. It is linked to the mukha-mandapa by stairs. The entrance of the mukha-mandapa also has dvarapalas. With the mandapa are eight small shrines for dikpalas, or guardian deities of each direction such as Agni, Indra, Varuna, Kubera and others. These were installed during the rule of Chola king Rajendra I. Inscriptions indicate that this area also had other iconography from major Hindu traditions during the Chola era, but these are now missing. The original eight shrines included those for Surya (the sun god), Saptamatrikas (seven mothers), Ganesha, Murugan, Jyeshtha, Chandra (the moon god), Chandeshvara and Bhairava. Similarly, in the western wall cella was a massive granite Ganesha built during Rajaraja I era, but who is now found in the tiruch-churru-maligai (southern veranda). Of the Shaktism tradition's seven mothers, only Varahi survives in a broken form. Her remnants are now found in a small modern era brick "Varahi shrine" in the southern side of the courtyard. The original version of the others along with their original Chola shrines are missing. Murals The temple has an underneath layer of Chola