Hindustani Raga-s Index will prove quite useful to all musicians, scholars and students of music who need to consult the main contemporary texts on raga-s descriptions, compositions and vistara-s. Browsing through the many tables of contents of these works (often in several volumes or parts) in order to extract the required information, is a time consuming activity and Moutal's book, although non-exhaustive, will be a tremendous time-saver for consultation. The present work covers 3 260 bibliographical references of 704 names of raga-s found in 37 devanagari texts (in 86 volumes) by 23 major authors.