Puranigudam is in the Nagaon district of Assam, India. There are several villages in Puranigudam. The main commercial center of Puranigudam, also known as Keyan Patti is located closest to Garamur. Rupahihat are to the north, Barhampur and Nagaon in the west, Chalchali in the south and Rongagorah and Samaguri in the east. The river Kolong flowes through the upper half of the area and National Highway 37 runs parallel to the river. The area is almost in the middle of the Nagaon district and situated in higher elevation than the district headquarters.