You may either select any module from the tabs at top of the Home page or can click on the Take a Free Demo on the Home page. There you can choose the Module you want to have a DEMO for.

To register for NISM exam, please visit - https://certifications.nism.ac.in/nismaol

you don’t receive a book / printed material. The practice questions are all online and other study material is downloadable in either a PDF or Excel format. Once you make the payments, your account will be activated. You can run the videos  

For different Modules number of videos and length differs. It solely depends on the cost and the module though we have given all the Important videos each and every Module

The validity for NISM exams is 60 days to 90 days as per plan subscribed by you. There is an unlimited access to the study material in the given period.