“Gyan Pravah,” is an Institutional Digital Repository (IDR) of Pandit Deendayal Upadhyaya Central Library of Central University of Haryana. It comprises the institutional and faculty publications/documents such as papers, theses, dissertations, conference proceedings, ordinances, Annual Reports, Newsletters, Information Bulletins, media clippings, etc. We have centralized hosting (at Central Library, CUH) of content and management of records. While utmost care has been taken to provide as authentic and accurate information as possible with regard to the document in this repository, CUH or Central Library of CUH disclaims any responsibility or liability from any incidental errors. While content from this repository can be freely downloaded for purposes of academic teaching, training and research, redistribution or hosting of full-text content in any retrieval system for profit is strictly prohibited. Every effort has been made to keep this repository updated and smooth-access for the end users. Despite our best efforts, we do not guarantee that the documents in this site are free from infection by computer viruses, etc. We welcome your suggestions to improve this repository and request that error (if any) may kindly be brought to our notice (is@cuh.ac.in).