This paper has been published in Peer-reviewed International Journal "Periodic Research" URL : https://www.socialresearchfoundation.com/new/publish-journal.php?editID=7597 Publisher : Social Research Foundation, Kanpur (SRF International) Abstract : The Saraswati Mahal Library, established by Raja Serfoji II of Tanjore, stands as a testament to the intellectual curiosity and enlightenment pursuits of its visionary founder. This research article delves into the profound significance of the library, offering a comprehensive exploration of its collection. The library boasts an impressive array of ancient manuscripts, rare books, maps, and other invaluable resources, drawing scholars, researchers, and aficionados from across the globe. This study unveils the role of the Saraswati Mahal Library as a pivotal centre for intellectual and cultural development during the era of Raja Serfoji II. Through meticulous preservation and dedicated patronage, the library played a crucial role in preserving and disseminating knowledge. It not only enriched the academic landscape of the time but also served as a beacon of enlightenment in Tanjore. Intriguingly, the article traces the library's evolution and its continued relevance in the contemporary era, shedding light on the enduring legacy of Raja Serfoji II's vision. Saraswati Mahal Library stands as a living testament to the spirit of enlightenment, serving as an invaluable resource for scholars and enthusiasts alike, and remains a symbol of the enduring pursuit of knowledge and enlightenment. This research article provides a glimpse into the treasure trove of knowledge housed within the library's hallowed walls. It underscores the profound impact it has had on the intellectual heritage of Tanjore and beyond.