Deccan Fortress Architecture System

Timeline

1. 1331–1340Gulbarga and Daulatabad · Deccan PlateauThe Bahmani Sultanate established its capital at Gulbarga and strengthened hill fortresses such as Daulatabad, using concentric walls, winding passages, and cistern systems to resist Vijayanagara's northern expansion and local separatism.
2. 1336–1340Northern Karnataka border · KarnatakaAfter its founding, Vijayanagara built stone fortresses and outposts along the northern border north of the Tungabhadra River, drawing on local mountain-building experience and absorbing bastion design elements from Islamic polities, forming a north–south military standoff.
3. c. 1450–1600Deccan fortresses · Deccan PlateauAfter the arrival of firearms, polities such as Bijapur and Golconda added artillery platforms and thick-walled bastions to existing hill fortresses, completing the Deccan fortress system's transition from cold-weapon mountain defense to modern artillery defense.