Thanks for replying, Bhikaari (I hate calling you that:P). Now my fears are the following and I want your suggestions.
1. I am busy with my research and studies. So I don't have time to prepare for GRE.
2. I have good GPA and also there are few recognized people in my field who will recommend me.
3. The pattern of GRE is going to change from August 2011.
So do you really think I have take the GRE again instead of doing research? Can I probably do one more year as a research assistant? Will that be a substitute for a low GRE score? And I don't really know how the new pattern of GRE is going to be.