Eastern Ghats Mobile Belt constitutes an important geological part of the eastern margin of the Indian peninsula, which extends over a stretch of about 700 kilometers from Vijayawada, Andhra Pradesh in the south to Balasore, Cuttack district of Orissa state in the northern border. There is bewildering variety of rock types in Eastern Ghats and the most important units are the khondalites, leptynites, granites, granulites and their variants. Extensive research work has been carried out in different localities of Eastern Ghats by many scientists from different academic institutions and organisations.

               The present study area Narsipatnam consisting of various rock types khondalites, leptynites, granites, granulites and their variants. The granulites with varying compositions are exhibiting intrusive relationship with leptynites and at places exposed as hillocks and hill ranges.