- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2015)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2014)   
- Production of Coal from Below Ground Workings by Mechanisations and Method of Work in Ranchi District  of Jharkhand (2013)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2013)   
- Production of Coal from Below Ground Workings by Mechanisations and Method of Work in Ranchi District  of Jharkhand (2012)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2012)   
- Production of Coal from Below Ground Workings by Mechanisations and Method of Work in Ranchi District  of Jharkhand (2011)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2011)   
- Production of Coal from Below Ground Workings by Mechanisations and Method of Work in Ranchi District  of Jharkhand (2010)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2010)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2004)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2003)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2002)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2001)   
- Production of Coal from Opencast Workings by Mechanisation and Overburden Removed in Ranchi District  of Jharkhand (2000)   
