Surya Lahoti (*), Kislay Kumud (*), Yash Gupta (*) & Arvind Kumar Jain (**)
(*) Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee-247667, India. Corresponding author e-mail: lahotisurya@gmail.com.
(**) CSIR-Central Building Research Institute, Roorkee-247667, India.