Armagaon was the second colony of the English East India Company in Southern India. Its original name was Durgarazpatnam (Dugarazpatam). .
In the time of Gurava Naidu, the great great grandfather of Raja Gopal Naidu, some Englishmen came to the port and sent for the chief men of the place, Gurava Naidu and the accountant, Patnaswamula Armogam Mudaliar, and said they wished to build a fort there. They landed a canon and fired a shot in a westerly direction and asked for as much as land the shot had traversed. The land belonged to Venkatagadi Raja, who was induced by Gurava Naidu and Armogam to allow the strangers to occupy the spot called Chenva Kuppam. Accordingly, they built a fort there and called the place in the honour of Armogam Mudaliar.