Uttarkashi Tunnel Rescue: सुरंग से किस तरह एक-एक करके निकाले जाएंगे मजदूर, की जा रही मॉक ड्रिल

Drilling work in the tunnel of Uttarkashi may start soon. The fault of the auger machine has been rectified and experts are hopeful that drilling will resume any time now. Watch how the entire operation is being run.