The Bibliotheca Indica, started in sankhya yoga pdf in hindi by Royal Asiatic Society, Bengal is perhaps the earliest Indological series. Sanskrit works published by Manuscripts Library, Trivandrum in the early part of 20th century. Kavyamala Series of Books of Nirnaya Sagar Press, Mumbai published during late 19th and early 20th centuries. Kavyamala is a collection of ancient, very rare and previously unpublished Sanskrit works.
In this post there are links to 3 books on the Panchatantram by Vishnu Sarma. Sanskrit commentary on Pancahtantra 2. Sanskrit text of Panchatantra with Hindi translation by JP Mishra 3. Sanskrit language, to the student-world, and to the reading public, Mr. 11th-century collection of Indian legends, fairy tales and folk tales as retold by a Saivite Brahmin named Somadeva. Ballala Deva, is the story of Bhoja, King of Malwa during the 11th Century A. This book contains many interesting legends about great poets like Kalidasa, Bhavabhuti and Bana.