Study Material for GRE
1) Barron's How to Prepare for the GRE: Graduate Record Examination, 14th edition.
2) GRE Big Book, published by the Educational Testing Service.
This is not as known but is very useful. It contains 27 question papers culled from the paper and pencil avatar of the GRE over several years, and is published by the same people who set the tests, ETS. It may be a little difficult to find. But put in your best efforts to get it. Its worth it.
3) Kaplan Higher Score on the GRE CD
Kaplan is a little on a tougher side. So dont get disheartened by lesser scores onthis.
4) The Princeton Review CD
This is much closer to the real one. Though some tests are really easy. For a free sample test:
5) The PowerPrep CD
You will receive this CD from ETS once you pay for a date. Keep a test or two to practise a day before the exam. Also try to do all the tests from this CD.
will keep posting more info...