reddy12
Did you file for I-485?
If so, post your I-485 Details like RD and ND?
Secondly what is your filing category? EB1, EB2 or EB3.
IF you filed under EB2 /EB3 and also if you filed solo (without concurrent filing), then you can call NSC at 1800 no. (refer Jagan0007 post) and explain your situation.
Hope this helps