Regarding the "826 work link" you mentioned, I couldn't find any information on a specific link related to "Khasakkinte Ithihasam" on a platform with 826 works. It's possible that the link might be a:
Khasakkinte Ithihasam is a protected intellectual property. Downloading pirated versions denies the estate of O.V. Vijayan and the publishers the credit and support they deserve for maintaining such a legacy. khasakkinte ithihasam malayalam pdf free 826 work link