[2] It was a village in Thullur mandal of Guntur district, prior to its denotification as gram panchayat.
A 13th century stone inscription erected to commemorate the birth celebrations of Rani Rudrama Devi, a ruler of Kakatiya dynasty, lays in a state of neglect at Mandadam village.
At Mandadam, Ganapati Deva crowned his daughter Rudrama Devi as his successor and latter ruled for another 30 years, scripting a golden chapter in the 13th century.
Erected on a huge granite pillar measuring 14.6 X 2.9 X2.9 feet, the inscription has 182 lines engraved in Sanskrit and Telugu indicating the birth of Rudrama Devi, her coronation, extent of land donated to Visweswara temple and lists out the charitable works taken up in the village.
APSRTC run buses offers transport services in the route.,[5] its very close to Vijayawada via Karakatta around 12kms,Center of Mandadam is always crowded with secretariat employees and Construction workers