Dr B. K. Behera is a professor in the Department of Textile Technology at the Indian Institute of Technology, Delhi. His research interests include the mechanics of textile structure and textile modeling. He has published over 100 research papers, presented numerous conference papers and has four patents.Dr P. K. Hari is a textile consultant and Emeritus Professor at the Technological Institute of Textile & Sciences, Bhiwani, Haryana. He was previously Head of the Textile Department at the Indian Institute of Technology, Delhi. He has published over 60 papers in international textile journals and has contributed to many International conferences.