India Post — Document not deliver & post office persons not responding

I booked a document No- EH[protected]IN from Gurgaon to Kargil on 2 Jan 2012 after so many follow ups telephonically & email ( [protected] ) but not getting any response from postal department. As per tracker after 12 days again showing in Delhi NSH. Customer care department not not aware. I am badly struggling for my important document but no body is ready give response. Really very bad services no time and money value. Really very bad experience staff also not supporting. I want to no where is my document? Document is important.