The four-day search and rescue operation at the collapsed under-construction tunnel of the NHPC Teesta Stage VI Hydropower Project in Sikkim's Namchi district concluded on Thursday, July 24, after recovery teams retrieved all 25 workers and officials who had gone missing following the tragedy, officials said. 

According to the Namchi district administration, three more bodies were recovered during the final phase of the operation on Thursday, taking the total number of bodies recovered to 25, as per IANS.