Northern Black Polished Ware is associated with which historical process?

Correct answer: Second urbanization

Northern Black Polished Ware, or NBPW, is a fine, glossy pottery found at many sites associated with the rise of towns, expanding exchange, and state formation in the middle Ganga valley and other regions, especially around the Mahajanapada period. It is an archaeological indicator linked with the phase often called the second urbanisation. It is not evidence of printing, railways, or a specific first naval war.