The Rule: Finish One Book Before Buying Another
Group I preparation fails on books more than on effort. Candidates buy 12–15 books, read 30 % of each, and blame time. The correct list is 6–8 sources — finished, revised, and tested at least twice.
Start with free Tamil Nadu Samacheer Kalvi and NCERT textbooks. Add one reference per subject only after you have exhausted the school-level material and found a specific gap. Every book on this list has been recommended repeatedly by Group I rank-holders.
