State Central Library of Kerala is also known as Trivandrum Public Library.It is situated at the heart of Thiruvananthapuram city, the capital of Kerala. It is the first public library in India.
The Library was established in the year A.D. 1829 during the reign of His Highness Sree Swathi Thirunal Maharaja of Travancore. The work of starting and organising the Library was entrusted to Col. Edward Cadogan, then the British Resident who was the grand son of Sir Hans Sloane, the founder of the British Museum. Col. Cadogan was the first president of the Trivandrum Public Library committee, which managed the affairs of the Library. At that time, only a privileged class who were called to attend the Durbar of His Highness the Maharaja was allowed admission to the Library. The Library was then known as “Trivandrum People’s Library”.
More information on the Wikipedia page 
The website is .