1. MPS Lab of Coal and Organic Petrology, Department of Geology, Banaras Hindu University, Varanasi, India
2. Bioremediation Lab, Department of Botany, Banaras Hindu University, Varanasi, India
3. Environment, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, India
4. The Institute for a Secure and Sustainable Environment, University of TN, Knoxville Tennessee, USA