Geotechnical and Rock Engineering, Rock Blasting, and Geotechnical Instrumentation Expert and Consultant. Having +44 years of research cum industry experience. Executed about 250 projects as a Project Leader and in several projects supervised and guided. Publised over 300 papers in various national and international journals, and conferences. Presently executing the design of drilling and blasting patterns of over 100 tunnels of various dimensions and rock mass classes (from class-1 to 7.