Vertical drilling along with manual in progress in tunnel

How vertical drilling works? Watch through this model

Vertical drilling starts to rescue 41 stranded laborers

Vertical drilling executes in Uttarkashi rescue operation

Vertical drilling starts after auger machine get failed

Newsroom: Manuel horizontal drilling in Uttarkashi tunnel

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Drilling machine stuck at last moment in Uttarkashi

BSF detects tunnel along Indo-Pak border in Samba

BSF detects 150-metre long tunnel along the border

Youth Congress stage protest against inflation

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BJP presents roadmap for 400 seats in Delhi

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