The tunnel is part of the 13.10 km long Package-14 handled by Afcons.
https://www.constructionweekonline.in/projects-tenders/19101-longest-tunnel-on-mumbai-nagpur-e-way-to-be-completed-by-sept
https://www.constructionweekonline.in/projects-tenders/19101-longest-tunnel-on-mumbai-nagpur-e-way-to-be-completed-by-sept