A 12-kilometre long tunnel of 10 metre diametre would be constructed at a cost of Rs 799 crore for carrying Narmada water to the basin of Son river under Bargi diversion project.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/12-km-long-tunnel-under-bargi-project
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/central-chronicle
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/narmada
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bargi-project
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/irrigation
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/canal-irrigation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-water-resources
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hoshangabad-d
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/jabalpur-d
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/narsimhapur-d