How should I get prepared for bank exams? Suggest good books for same. Attach few previous question papers/model papers with solutions.

for 12th exam in banking
How should I prepare for banking exam?
i want to prepare for the banking exams and
now the notifications for ibps rrb and po's are
released ,please suggest me the books to
prepare, and the books which have the solutions
with previous papers,model papers
for 12 exams pls rly fast