hey i got 530 score in gmat.
I have 3.8/4 gpa.
Essay score is 5/6
Please tell me is it possible for me to get into the boston university for 2 year mba programme or i need to give gmat again

According to their website, the mean GMAT score of enrolled students is 680, and the mid 80% range 610-730. Just going by those statistics you probably will need to take the test again, as your score is quite a long way from both. You might want to think about contacting them directly, however, if you feel that your academic record and experience might yet give them cause to make an exception.

thanks for your help lukeh.
Could you please tell me that what is best time to give GMAT one more time.
Could you please provide me with your email id so that i can send you my querries in future.
My email id :[email protected]

Thanks in Advance
Regards

I'm afraid I don't give out my email, but if you post something on here I'll be happy to help, if I can. Opening up your queries to other forum members is actually the best way to get a proper answer, since my knowledge and expertise is, in case it's not already obvious, limited, and there are people on here much better qualified in a whole heap of areas.