SRI AGASTHIYA MAHASIVA VAKKYA NADI JOTHIDA NILAYAM The Naadi centre at Vaitheeswarankoil was opened by A.Sivasamy as the Chief Naadi Astrologer in charge of the centre. He hails from the well known family of Arul Siva Arumugunar who was really a master of many arts including Naadi Astrology.