A free program for Android, by Skyosis Tech.

Tamil Library is a free application for Android that offers a wide variety of Tamil books, novels, stories, calendars, news, games, and more. There are also educational books such as General Knowledge, Science, History, and other educational content that you can read.

There are amazing features included in this app. You can bookmark pages of the book and highlight the words. You can also change the font size and choose from 2 reading options (Day Mode and Night Mode) depending on your comfort. 

Tamil Library comes with a simple, clean, and user-friendly interface, which makes the application easy to use.