According to the introduction of the book Tripura Rahasya, the book has three kandas: The Maahaatmya Khanda (6,687), Jnaana Khanda (2,163) and Charyaa Khanda (3150?).
The work was thus written by Haritaayana and is also called after his
name Haritaayana Samhita. It is said to consist of 12,000 slokaas in
three sections — The Maahaatmya Khanda (Section on the Greatness of
Srii Deevi), Jnaana Khanda (Section on Supreme Wisdom), and Charyaa
Khanda (Section on Conduct). Of these the first consists of 6,687
slokaas; the second of 2,163 slokaas; and the third is not traceable.
The section on Greatness contains the prelude to the work and later
treats mostly of the manifestations of the Supreme Being as Durga,
Kaali, Lakshmi, Sarasvati, Lalita, Kumaari, etc. and their exploits
and found in Brahmaanda Puraana, Maarkandeya Puraana and Lakshmi
Tantra. Its contents mostly cover the ground of Durga Saptasati and of
The first two khandas, Maahaatmya and Jnaana are available, in Sanskrit, in the archive. I think the third one is also available, but I am not sure about it.
Jnaana Khanda and
The introduction clearly says that Charyaa Khanda is intractable. So, I am unsure about the source of Charyaa khanda and cannot verify the authenticity as I am not well aware of Sanskrit.