2.8-km-long twin tube tunnel in the “ridge area”.
https://indianexpress.com/article/cities/delhi/tunnel-proposed-below-ridge-expert-panel-calls-for-seismic-study-7804226/
Delhi news: The proposed tunnel is to be part of the NHAI’s project for NH 148AE. The 4.78-km long, six-lane stretch will end at Nelson Mandela Marg, Vasant Kunj. Part of the project is the 2.8-km-long twin tube tunnel in the “ridge area”.
https://indianexpress.com/article/cities/delhi/tunnel-proposed-below-ridge-expert-panel-calls-for-seismic-study-7804226/
Delhi: Tunnel proposed below Ridge, expert panel calls for seismic study
indianexpress.comDelhi news: The proposed tunnel is to be part of the NHAI’s project for NH 148AE. The 4.78-km long, six-lane stretch will end at Nelson Mandela Marg, Vasant Kunj. Part of the project is the 2.8-km-long twin tube tunnel in the “ridge area”.