The surname "Madanu" is predominantly found in the southern regions of India. Research indicates that it likely originated in the Rayalaseema region, which is now part of Andhra Pradesh. From there, it spread to other areas, particularly Hyderabad and other parts of Telangana, as families migrated in search of economic opportunities.
The concentration of the surname in these regions suggests deep roots in South Indian culture and history. Villages like Nandavaram, known for Jyothi Utsava celebrations, may have connections to the early presence of the Madanu surname, though specific village-level origins are difficult to pinpoint with certainty.