DDA allots land for construction of STP in Mahipalpur, Delhi May 24, 2024 | Announced/Approved, Key Segments, Municipal Wastewater, Project Updates, Wastewater The Delhi Development Authority (DDA) has allotted land to the Delhi Jal Board (DJB) for construction of a sewage treatment plant (STP) in Mahipalpur, Delhi. This content is restricted.