Thiruvananthapuram

British Library
Centre for Development Studies Library
Indian School of Social Sciences Library
Kerala Council for Historical Research (KCHR) Library
Kerala Granthasala Sandham
Kerala Legislature Niyama Sabha Library
Kerala University Library
Mahakavi Ulloor Memorial Library and Research Institute
O. R. I. & Mss. Library
Sree Chitra Thirunal Library & Reading Room
State Archives of Kerala
Trivandrum Public Library (State Central Library)