This was conveyed to Uttarakhand Chief Minister Trivendra Singh Rawat by RVNL CMD Satish Chandra Agnihotri and Chief Project Manager Himanshu Badoni at a meeting here.
The process of inviting tenders for the long-awaited project has been initiated and work on construction of tunnels will begin by June-July, an official release quoting the RVNL officials said.
Satellite imagery and digital resolution technology will be used for ground work and location survey for the project, they said.