A well furnished office, library and reading room are available at the head office of IRISH Nirmalagiri. The Library has a holding of three thousand books donated by Professor Dr.K.S.Mathew, the founder director of IRISH and a number of other books purchased with the funds allocated by Monsignor Mathew M Chalil, the chairman of IRISH. High profile collections from generous benefactors are awaited. Individual rooms for research guides are also arranged. An air conditioned 18 seated multi-lingual language lab, first of its kind for learning tool languages like English, Dutch, German and Portuguese is set up in IRISH at Nirmalagiri . The scholars are privileged to make use of the College library for their reference.

     A rare collection over 4000 rare books related to Christian Theology , Judeo-Christian Scriptures an Studies in Asian Christianity is kept in the Alpha Centre for Theology and Science , Sandesa Bhavan, Holloway Road, Thalasserry.

     A good collection of books dealing with History and Culture of St.Thomas Christians is maintained in the Marthoma Research Academy , Azhikode Jetty, Kodungalloor.

     Rare books on Maritime History and Indo-European history especially a monumental collection of Portuguese books and documents are kept in the KECT, Kanakkary, Kottayam , Kerala. Tele. 9447087076