need help GMAT score 600 work ex 2 years

Do you have any target schools in mind? If so, please list those. It would help in a profile evaluation. 600 seems to be a bit on the low end for top-20 schools, so you might want to try to improve on that score.

I would recommend retaking the exam to increase your chances at a better school.

You have a few things against you - 2yrs (vs avg of 5 years), indian male (i'm presuming), and IT.
2yrs is do-able - but usually if you were female your odds are bit better.
A score of 600 can also be higher based on your background. If not, you should prob develop another 2 years of experience with that score and demonstrate achievement/leadership.

Average total expense? It's quite expense depending on which types of schools. THey can go as high as $50K per year with many of the top schools going on many trips which will cost you a lot of money as well. Smaller state school institutions might be may be $10-$20K - but do your research on this. Many will be $40K-ish.