New Delhi, March 1 -- In a significant progress in the rescue operation of eight workers trapped in Telangana tunnel collapse, the whereabouts of the four persons has been located.

The development was announced by Telangana Excise Minister Jupally Krishna Rao on Saturday.

Eight persons - engineers and labourers - got trapped under the collapsed roof of the Srisailam Left Bank Canal (SLBC) tunnel since February 22 and the rescue operations are on in full swing to pull them out to safety .

- Krishna Rao, who attended a meeting with officials involved in the rescue operation along with Irrigation Minister N Uttam Kumar Reddy, said there was lot of progress during the last couple of days. The rescue operation has been going on for a week....