The presence of coal in this part was earlier proved in scout boreholes drilled by MECL and based on boreholes drilled upto Dec.'91 a geological note "Status note on exploration for coal in Manegaon and Yekona area, Wardha Valley Coalfield" was prepared by MECL in Jan.'92. This discovery of coal provided the necessary impetus to the coal proving activity in this area.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/executive-summary-eia-report-shivani-125-mtpa-opencast-coal-mining-project-wardha
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/central-mine-planning-design-institute-ltd
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-impact-assessment-eia
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drainage
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/land-use