Introduction for ca

I am an Engineering graduate (B.E Mechanical) and i am interested in doing CA. Am i eligible? I think the first exam to be taken is CPT and i believe the below mentioned topics are to be prepared.

Fundamentals of Accounting, Mercantile Law, General Economics, Quantitative Aptitude.

Where can we find the study material for the above mentioned topics? If text book is the best source then suggest me some best books.

What are all the list of exams that are to be done for CA?