Enviro Infra Engineers Limited is engaged in the business of designing, construction, operation and maintenance of water and wastewater treatment plants (WWTPs) and water supply scheme projects (WSSPs) for government authorities/bodies. WWTPs include sewage treatment plants (STPs), sewerage schemes (SS) and common effluent treatment plants (CETPs), while WSSPs include water treatment plants (WTPs) along with pumping stations and laying of pipelines for the supply of water. The treatment process installed at most of the STPs and CETPs is zero liquid discharge (ZLD) compliant, and the treated water can be used for horticulture, washing, refrigeration and other process industries. It has developed 26 WWTPs and WSSPs across India, which includes 20 projects with 10 million liters per day (MLD) capacity and above. In addition to the execution of projects independently, it also enters into joint ventures with other infrastructure and construction companies to bid and execute projects.