| Sanitation Infrastructure and Services | Manufacture, installation, and maintenance of sanitation and waste treatment plants for railways and institutions. | Exclusive licensing of DRDO's patented biodigester technology, ISO certified manufacturing, strong institutional partnerships. | Indian Railways, educational institutions, real estate, commercial sectors; primarily B2B with institutional focus. | Operations and maintenance services and licensed technology solutions. | 54 | 100 | Sales of sanitation systems plus recurring operations and maintenance service contracts. | Project-based sales and recurring service fees. | Government sanitation initiatives, urbanization, DRDO technology partnership, Indian Railways O&M contracts. | Banka WaSH solutions including bio-toilets, bio-tanks, and sewage treatment systems. |
