| hi,
I think the math section in gre should not be problem. I know a dentist who scored 790. all it takes it a little bit of practice. it requires only very basic math preparation. if you want thorough preparation, go for Kaplan's math preparation guide. that should help. i strongly suggest some coaching in maths. that will make concepts clearer. in the present scenario, dont underestimate the verbal part. this is being a lot difficult these days.
hope this will help.
with compliments,
Ramanamlv | 
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