Mantralayam/మంత్రాలయం/ಮಂತ್ರಾಲಯಂ is a village in Kurnool district at Andhra Pradesh, India. It lies on the banks of Tungabhadra river. On the border, neighbouring state Karnataka lies. Mantralayam is also called as Manchale. This town is noted for the holy presence of the Vrindavana (sacred burial) of Sri Guru Raghavendra Swami శ్రీ రాఘవేంద్ర స్వామి, a Madhwa saint and the follower of Sri Madhwacharya. It is believed that Guru Raghavendra Swami శ్రీ రాఘవేంద్ర స్వామి is in the Vrindavana from the past 339 years and believed to be in the Vrindavana for another 361 years. While entering the Vrindavana, Guru Raghavendra Swami stated that he would be there (in the Vrindavana) for 700 years