The purpose of the study is participation and contribution to open source Koha ILMS used in libraries of public sector Universities. Open Source software are the product of voluntary effort of developers and end users. Koha is an active Open Source library management software project make using voluntary effort of programmers and library professionals. Library professionals are end users of Koha and their involvement is very necessary in various stages of the software development. Koha user community is a growing one and the project offer variety of nondeveloper roles for library professionals. Library professionals can report bugs, documentation writing, plug-in development and training. The main aim of the survey is to know the participation and contribution of Library professionals in Koha Open Source software project implementation in their libraries.