films on the Kali Cult of india

films on the Kali Cult of india

Hello:  Growing up I saw a film twice, it was made by Italian, or Indian film company, it was about the Kali cult of India, made in the 1960's and in the film I remember the cult members entered and exited their hideaway through a large tree? 

 

Does anyone know what the title of this film is?  Or has also seen it?