1. Eastern Washery Zone, Bharat Coking Coal Limited, Dhanbad, Jharkhand, India
2. Department of Fuel & Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
3. Department of Management Studies, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
4. Department of Project & Planning, Bharat Coking Coal Limited, Dhanbad, Jharkhand, India