The appeal is made to the students and teachers and other members of library whenever they want whether particular books of a particular title or particular books of particular author among thousands of collection this inquiry level needs may be fulfilled by means of searching the OPAC of the library. Desire user may go to the computer screen of PC’s where SOUL 2.0 application is working and fill up his/ her request for the availability of books in the OPAC choosing one of the search parameters (title, keyword, author, ISBN, publisher, and accession number of books etc. if known) the result will appear on the OPAC screen whether the book of particular title or particular author is available or not in the collection of the library. If by efforts, the user is unable to execute the search in library OPAC, he/she may directly contact to the library staff or even may contact to the librarian for the searching availability book through OPAC. OPAC screenshot is here.