vriksham (sacred tree of this temple) is Sandalwood tree. The sacred tank of this sthalam (place) is called the GuptaGangai which is square in shape with . It is one of the shrines of the 275 Paadal Petra Sthalams. It is one of the rare temples where there is a separate shrine for Yama, the Hindu god of death. Yama is sported in seated posture with Chitragupta by his side. Gupta Ganga, Yama Theertham, Agni Theertham and Lakshmi Theertham are the various bodies of water associated with the temple. Masimagam is the most prominent festival in the temple when the festival image of Shiva is taken in the mount of Yama around the streets of Srivanchiyam. It has two nandhis facing both sides of Vanchinadha. Rahu-Ketu, carved out in a composite sculpture. There is a separate sannathi for Shani. Thiruvayyaru, Mayiladuthurai, Thiruvidaimaruthur, Thiruvenkadu, Chayavanam and Srivanchiyam are considered equivalents of Kasi. Like in Kasi, where the city is centered around Kashi Vishwanath Temple, the temples in these towns along the banks of river Cauvery, namely Aiyarappar temple in Thiruvaiyaru, Mahalingeswarar temple in Thiruvidaimarudur, Mayuranathaswamy temple in Mayiladuthurai, Chayavaneswarar temple in Sayavanam, Swetharanyeswarar temple in Thiruvenkadu, Srivanchinadhaswamy temple in Srivanchiyam are the centerpieces of the towns. Worship practices The temple priests perform the puja (rituals) during festivals and on a daily basis. Like other Shiva temples of Tamil Nadu, the priests belong to the Shaiva community, a Brahmin sub-caste. The temple rituals are performed six times a day; Ushathkalam at 5:30 a.m., Kalasanthi at 8:00 a.m., Uchikalam at 10:00 a.m., Sayarakshai at 5:00 p.m., Irandamkalam at 7:00 p.m. and Ardha Jamam at 8:00 p.m. Each ritual comprises four steps: abhisheka (sacred bath), alangaram (decoration), naivethanam (food offering) and deepa aradanai (waving of lamps) for both Vanchinadha swamy and Mangala Nayagi. The worship is held amidst music with nagaswaram (pipe instrument) and tavil (percussion instrument), religious instructions in the Vedas (sacred texts) read by priests and prostration by worshippers in front of the temple mast. There are weekly rituals like (Monday) and (Friday), fortnightly rituals like pradosham and monthly festivals like amavasai (new moon day), kiruthigai, pournami (full moon day) and sathurthi. During the Tamil month of Kaarththigai (Nov-Dec), Theerthavari (sacred water splash) is conducted in the Guptha Gangai (temple tank) on all Sundays. It also includes a ten-day festival and a car festival at the end of the month. Literary mention