1. Analytical and Applied Chemistry Division CSIR-National Metallurgical Laboratory, Jamshedpur, India
2. Centre for Analysis, Testing, Evaluation and Reporting Services, (CATERS) CSIR-Central Leather Research Institute, Chennai, India
3. Department of Mining, Mahanadi Coalfield Limited, Sambalpur, Odisha, India
4. Clean Energy Department, CMPDIL, Ranchi, India