The book directly maps to Unit 4 (History and Culture of India) and Unit 8 (History, Culture, Heritage, and Socio-Political Movements in Tamil Nadu) of the revised TNPSC syllabus.
There are several safe, legal, and often free ways to access the book: tamilnadu history by j dharmarajan pdf free download
Short overviews and unit summaries can be found on academic platforms like Digital Availability: The book directly maps to Unit 4 (History