Power Transmission Corporation of Uttarakhand Ltd. (PTCUL), a Government of Uttarakhand Enterprise, has invited E-Tender from registered and experienced firms/contractors for the “Work of Earthing Audit & Health Assessment of Existing AIS Substation at Dehradun.” Tender No.: 01 / अधी०अभि० (परि एवं अनु.) / मण्डल / देहरादून / 2026-27 Tender documents can be downloaded and uploaded through the official e-tender portal from 24.05.2026 to 05.06.2026. Tender Portal: [www.uktenders.gov.in](http://www.uktenders.gov.in) PTCUL Website: [www.ptcul.org](http://www.ptcul.org) The tender will be opened on 08.06.2026. Issued by: Office of the Superintending Engineer, Operation & Maintenance Circle, Yamuna Colony, Dehradun.