- Sewage Treatment Plant of Capacity Addition of 200,000 m3/day (44 MIGD) to existing 200,000 m3/day (44 MIGD) and peripherally associated units with nominal total treatment plant capacity of 400,000 m³/day (88 MIGD).
- Deep Gravity Sewer (DGS) pipeline, Inlet Pumping Station, Preliminary Treatment, Biological (Secondary) Treatment stage with advanced treatment technology, Tertiary Treatment, Sludge Treatment, TSE Pump Station.
- Operation & Maintenance of the Tubli STP Expansion Phase 4 and existing Tubli STP for 10 years after commissioning of Tubli STP Expansion Phase 4.
- Buildings, Substation, Electromechanical Works, Electrical, Instrumentation Control & Automation Works.
- Micro-tunneling and Road Works.