Time to study the verbal portion (although you probably know that by now). Your score can go up quite markedly if you spend time improving this section, all you need is about a 33/34 raw score (around the 40th percentile) to bump your score up to 700. Some basic strategies for each of the sections:

1) CR - focus on answer choices that are close to the topic of the statement
2) RC - Look for your answers to detail oriented questions in the passage, often times they are verbatim
3) SC - Look at the beginning and end of each underlined portion for differences in the answers. If you learn the grammar rules you will be able to employ more logic (all the stuff that got you the impressive 51) when choosing answers.

Hope this helps.

thanks alot for your valuable feedback..
vl focus on verbal now ...

regards
harsh