This is one of the most popular versions, featured in the album Sampradaya Mangala Haratulu Mooshika Vahana ) with music by T. Nagaraj . You can find this version on Bhakta Ramadasu:
Mangalamani mangalamani mangalamani mangalam, Shree Mahalakshmi mangalam. mangalamani mangalamani lyrics in english
You can find the full lyrics for the "Mangalamani Mangalamani" song, often used in South Indian devotional, wedding, and musical contexts to invoke auspiciousness, at the following sources: JioSaavn This is one of the most popular versions,