Pottery, the most common archaeological artifact, offers insight into raw materials, technology, and cultures. This study examines three Black-Slipped Ware shreds- two black, one red- collected from cultivated fields, mud paths, and irrigation canals at Early Historic site of Tekttha, Naogaon, Bangladesh. Through physical, chemical, and ethnographic analyses; manufacturing techniques, raw material provenance, and firing treatments were constructed. Mineralogical results show similar compositions with varied peak intensities, suggesting differences in sources or firing temperatures. These findings illuminate regional ceramic production and establish a foundation for further comparative archaeometric research. The study aims to deepen understanding of Early Historic ceramic technologies in Bangladesh.