Sorry I hit the send too fast..guess I am used to post whoring.
backk to the topic.
Start with Barrons.
Also practice. Practice as much as possible. there are tests in CDs and books where you can practice. There are tests online. If you need any assistance email me at ashishusc@gmail.com. I'll direct you towards certain specific sites.
even if you are willing to join a coaching institue, i would highly suggest picking up a Barrons a month ahead and then getting into those classrooms.