Thirupachur Arulmigu Vaacheeswarar Temple, historically known as Paasoor, is one of the celebrated 276 Paadal Petra Sthalams immortalized in the 7th-century Tevaram hymns composed by Saint Thirugnanasambandar and Saint Appar. Situated on the western outskirts of Tiruvallur town in Tamil Nadu, this ancient temple is famous for the origin legend of a self-manifested Swayambhu Lingam uncovered beneath a dense bamboo grove (Moongil Vanam).
Spanning an extensive granite complex with a towering 5-tiered Rajagopuram, sculpted Chola pillar corridors, the unique 11 Ganesha shrines (Ekadasa Vinayagar), and a sacred lotus tank (Pasupati Theertham), Thirupachur is a revered spiritual haven. Devotees visit this sacred sanctuary to pray for relief from mental stress, success in legal matters, and divine family harmony.