The TDS offers a range of services such as turnkey comprehensive EPC solutions for transmission and distribution systems, including feasibility studies, site selection/survey and logistic studies, detailed engineering – civil, mechanical, electrical, C&I, procurement, and project management, transmission line construction, tower erection, stringing, testing and commissioning of lines 11kV, 33kV, 66kV, 132kV, 220kV, and 400kV, quality inspection, control, and safety management, O&M management and asset management, switchyard and substation construction, EHV transmission line construction, structural and yard equipment erection, substation testing and commissioning, maintenance, and overhaul of electrical systems, and turnkey execution of power supply systems. It also offers specific advisory services such as study and analysis of existing installations, analysis of efficient/modern network management methods, analysis of load data and reduction of usage of diesel and other costlier fuels, and efficient methods of power transmission and distribution techniques. Additionally, the company provides R&M, up-gradation, and updating services.