Current Awareness Services are those services which keep the users abreast of the developments and advances taking place their fields of specialization or in areas of research in which they are engaged. This method is limited to a few, as it is not meant to generate comprehensive review of all activities in any subject area. CAS can be given in various forms such as by title, current content list, indexing and abstracting etc. In a library by making use of computers the embers can be provided CAS by sending emails, through various databases, CD-ROMs etc.