Biocolours derived from natural biological sources have become a promising substitute for synthetic dyes because of their multifunctional applications and environment-friendly qualities. Bacterial pigments have gained a lot of attention due to their diverse range of qualities which include antimicrobial, antioxidant, and anticancer activities. As a result, biocolours are well suited for use in food, pharmaceutical, textile, and cosmetic industries. Although notable advancements have been made in identifying and characterizing various bacterial pigments, a thorough understanding of the biosynthetic pathways of different bacterial pigments including the underlying molecular mechanisms, enzymatic players, genetic frameworks, and regulatory networks is still an evolving study area. This chapter seeks to bridge this knowledge gap by systematically elucidating the molecular basis of biosynthesis in a few selected bacterial pigments. It explores current biotechnological interventions, such as genetic engineering and synthetic biology techniques, to improve bacterial pigment production with a focus on the structure of pigment-associated gene clusters, the characterization of the important enzymes. Furthermore, the chapter covers studies in functional genes and enzymes, comparative pathway analyses, and strategies for host system optimization. It concludes by sharing insights into the future potential of using cutting-edge technologies like genome mining and integrative omics to find novel pigment-producing microbes and develop industrially viable applications for bacterial pigments.