This paper attempts to improve user satisfaction with the online public access catalog (OPAC) in the deemed university libraries in Tamil Nadu. The study investigates the OPAC link in the website. The library has a separate server for LMS, the number of computers allotted for OPAC in a library, computers allotted for OPAC, the level of automation, software used for automation, types of OPAC access in automation available, subscribed link in OPAC and types of search. The present study survey approach was used to distribute 1200 questionnaires and 998 questionnaires were received back and analyzed with specific objectives. This study focused on the user OPAC to check OPAC link on website availability are 68.43%, followed by the type of OPAC access in automation available at 58.31%.