Construction of office building including internal water supply, sanitary installations, drainage, iei and fans, fire fighting, mechanical ventilation, lifts, ups backup, av system, pa system, vrv and vrf ac system, cctv, lan, substation equipment, dg sets, rooftop solar power generation system, street lights, developmen works like external water supply connections, ug sump, internal roads, bore wells with pump sets, rain water harvesting, horticulture operations etc., for gst commissionerate at tirupati, andhra pradesh. sw providing outsourcing man power service to office of assistant engineer e, cpwd, tirupati on job basis.