Ravi Kumar Sharma, Professor in Civil Engineering Department, National Institute of Technology, Hamirpur (HP), obtained his PhD in 1999 from Indian Institute of Technology, Roorkee. He is an experienced teacher, researcher and consultant with more than 37 years of experience. He has published 5 books, 150 research papers, completed 13 research projects and provided consultancy to more than 2000 construction projects. Rachit Sharma obtained his PhD in structural engineering from National Institute of Technology Jalandhar. He has published 2 books and 25 research papers in journals and conference proceedings. He has published three design patents along with one copyright.