This book is a sister project, part of the much larger project undertaken by the two of us, with the help of many volunteers. Full details of the project can be seen on the main website

https://hamraaz.org/hfgk

The project is an outgrowth of the massive Hindi Film Geet Kosh (1980-) series of books compiled by the first author. The website is planned to contain all the data in the Geet Kosh, suitably expanded and Rev by including the latest information.
The whole history of the Geet Kosh may be read in the My Story section of the above-mentioned website. It is felt unnecessary to repeat it here. Suffice it to say that after the pioneering work of Firoze Rangoonwalla and BV Dharap, Geet Kosh was a unique and original compilation work expanding the earlier work in many directions.
The database on the website is divided into three section for convenience. The Censor Certificate section has the information about the censored films. The Filmography section has the information about film production and other details. The Song section has detailed information about the songs.
It is a work in progress.
Earlier we have published a book based on the Censor Certification Section and has the censor information of Hindi Talkies Feature Films from 1931 to 2010.
This book is the updated and revised Censor Certification information for the decade 1931-1940.