1. Department of Applied Geology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India
2. Department of Earth Sciences, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
3. Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China
4. Indian Institute of Technology Patna, Bihta, Dayalpur, Bihar 801106, India