The Shivling worshipped at Thirumanancheri Kalyanasundareswarar Temple at Thiruvelvikudi in Mayiladuthurai district of Tamil Nadu changes its color five times in a day. The Shivling depicts copper color, pale red, gold, green and unknown color during various times of the day. The Shivling changes its color every six nazhigai (2 hours and 24 minutes). From 6:00 AM to 8:24 AM Morning hours the Shivling is of copper color From around 8:25 AM to 10:48 AM the Shivling is of pale red color. From 10:49 AM to 1:12 PM noon the Shivling is of gold color. From 1:13 PM to 3:36 PM the Shivling is of emerald color or green color. From 3:37 PM to 6 PM evening the Shivling is believed to depict an unknown color. Devotees believe the Shivling shows which color the devotee has in his or her mind. Some Facts of Thirumanancheri Kalyanasundareswarar Temple The temple is one among the 275 Paadal petra sthalams – temples glorified by Saivite saints. The Shivling worshipped in the temple is swayam