Sir i am an sc category student . I am getting about 130-170 marks.what rank can i expect .could i get mechanical in iit bombay.plz reply....

You can check out the your cut off from the list given below :

http://www.askiitians.com/IIT-JEE-2010-Cut-Offs.aspx

Also for opening and closing rank for all the IIT’s can be checked from here:

 http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx

All the Best!!!