As India scaled solar manufacturing and deployment, increasing attention turned to both bill of materials (BoM) inputs and balance-of-system (BoS) components that were essential to building a competitive domestic supply chain. From backsheets, glass, junction boxes, frames, encapsulants, and wafers to inverters, mounting structures, cables, transformers, and switchgear, these segments represented a significant opportunity for value creation, localization, and industrial growth.