Nidamarru is 4 km to the west of
Mangalagiri in
Guntur District. It is an archaeological site where four Buddhist images were discovered during the excavations. Of the findings, two Buddhist images are carved in black stone and are preserved in the Theosophical Society at
Guntur and the other two are seen in the village.
Mangalagiri railway station is on the Hubli-Machilipatnam line.