Mangalagiri of Guntur district, Andhra Pradesh, India, is between Vijayawada and Guntur on National Highway No. 5. Mangalagiri means “Auspicious Hill”. During the Vijayanagara rule it was known as Mangala Nilayam and then later came to be known as Totadri.
Mangalagiri is a pilgrim centre. Mangalagiri is a pilgrim centre. There is a temple on the hill dedicated to Lord Panakala Narasimha Swamy. Here, jaggery water is offered to the lord by the devotees. It is said in the scriptures that, the lord is being worshiped since Satya Yuga (The first of the four yugas). In the down hill there is another temple dedicated to Lakshmi Narasimha Swamy.
It is said that, Yudhishtira (Dharmaraju, the eldest of the Pandavas) installed the main deity in this temple. The temple has a very tall tower with beautiful sculpture which has 11 stairs. It was constructed by Raja Vasireddi Venkatadri Naidu, during the years 1807-09.
Source:
https://www.unnatisilks.com/mangalagiri-history-weavers-world.html