With 187 marks your AIR is around 8000 ....
please check out the opening and closing rank of IIT along with cut off:
Please click the link given below for IIT JEE cut off:
Click the link below link for opening and closing rank of IIT :
Cutoff in new IITs check the link give below :
http://jee.iitd.ac.in/openclose09.htm (this link includes the more detail analysis)
for code of the cources check the councelling broucher 2009.
All the Best !!