Dear Anil since you have been working in UP and wanted the passport from Orissa to avoid some hinderances on the advice of some unscruplous agent and now in trouble.
First of all you should have applied at UP itself and they would have carried out your verification at your permanent address at Orissa, ofcourse this could have taken a longer time than normal but could have saved you in the aftermath. I also belong to UP but my passport was issued from Kerala and I did it in the correct way.
Now you are holding the passport for the last 4 or five years with the knowledge of your department by requesting them for NOC but cunningly not using the same thereby hid the truth from your present employer and the passport issuing authority too.
You have some of theoptions now: a) Keep silent on this issue till 2015. b) Apprise your department and confess with request for pardon ( Which would not help you either). c) On the nearing expiry in the year 2015, just report the loss of your passport at UP where you have been residing with all the procedure of lost passport ( Do not recall its particulars at any stage) and apply the fresh passport though it is another cheating but you are left with no other alternative.
If you have decided to move abroad for employment, simply submit the proper resignation and after release proceed ahead, if not just wait for another four years and do what I have suggested at point (c).