| Income Tax, Wealth Tax & Gifts Tax in Sri Lanka | S. | Balaratnam | 1979 | General |
| Incomplete Thombu, The | T. | Shanaathanan | 2011 | General |
| Incursions & Excursions in and around Sri Lankan Cricket | Michael | Roberts | 2011 | General |
| Independence Day of Ceylon,The - Sessional Paper XXII - 1947 | Govt of Ceylon | N/A | 1947 | Politics |
| Independence Day Souvenir 1984 | Tilak | Ratnakara | 1984 | General |
| Independence Day Souvenir 1986 | Department of Information | N/A | 1986 | General |
| Index of The Ceylankan, Numbers 1 to 88, 1998-2019 | Chitra | Karunanayake | 2020 | General |
| Index to the Mahawansa together with Chronological Table of Wars & Genealogical Trees | John | Still | 1996 | Religion |
| India & Ceylon | Benimadhab | Barua | N/A | General |
| India & Ceylon - A Symposium | Philip | Mason | 1967 | General |
| India & Sri Lanka - Sirimavo-Shastri Pact | Lalit | Kumar | 1977 | Politics |
| India - Paintings From Ajanta Caves | UNESCO | N/A | 1954 | General |
| India House Colombo - Portrait of a Residence | Gopalakrishna | Gandhi | 2002 | General |
| India in Ceylonese History, Society & Culture | M.D. | Raghavan | 1964 | General |
| India's Boundary & Territorial Disputes | Surya P. | Sharma | 1971 | General |
| India's Role in Sri Lanka's Ethnic Conflict (Marga 3/19) | Sankaran | Krishna | 2001 | General |
| India's Sri Lanka Fiasco - Peacekeepers at War | Rajesh | Kadian | 1990 | General |
| India, Pakistan, Ceylon | W.Norman | Brown | 1960 | General |
| India, We Tamils and Sri Lanka | S. | Piyasena | 1987 | General |
| Indian Culture In The Days of the Buddha | A.P. | de Zoysa | 1955 | General |
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