India, April 16 -- Rail Vikas Nigam Limited (RVNL), a public sector undertaking under the Ministry of Railways, has achieved the first Tunnel Boring Machine (TBM) breakthrough of Tunnel-8, the longest transportation railway tunnel in India, as part of the ambitious 125-km Rishikesh-Karnaprayag Broad Gauge Rail Link Project in Uttarakhand.

The breakthrough was achieved in the presence of Union railway minister Ashwini Vaishnaw and Uttarakhand chief minister Pushkar Singh Dhami here on Wednesday

According to RVNL officials, the 14.57-km tunnel from Devprayag Saud to Janasu was bored using a state-of-the-art Tunnel Boring Machine (TBM) named Shakti, marking a historic moment in Indian tunneling history. This is the first time TBM technolog...