Flanked by fifty-two dilapidated merchant residences standing along a single cobblestone avenue in Sonargaon, Panam Nagar remains one of South Asia’s most singular architectural corridors—a blend of European classical columns, Mughal decorative niches, and local terracotta masonry.

Built primarily by wealthy Hindu cloth and indigo merchants during the late nineteenth and early twentieth centuries, the mansions face critical structural threats from pervasive rising damp, saline humidity, and uncurbed root intrusions.

A specialized coalition of archaeologists from the Department of Archaeology and international conservation bodies has initiated chemical lime-mortar injection trials to stabilize the crumbling facades without stripping away their authentic patina.