Passport Office Ghaziabad — no response on reissue of passport

I have applied for reissue of passport on 18th oct'18 on passport seva kendra, meerut. On nov 15th '18 my document reached to regional passport office, ghaziabad. It took almost a month to reach document from psk to rpo. Now from 15th nov '18 document is in rpo and there is no processing going on. It's been almost 2 months and status of my passport is document submitted. I tried to contact regional office but no one is picking up call. I applied for normal process of reissue of passport not tatkaal.in normal process also, in a month time people get the passport. But for me even after 2 months status is "document submittied". I am not sure why it is getting delay.in this way i wont get my passport in next 2 months also. I am not able to travel for my important business trip because of delay of the reissue of passport. Please take some action on it and give some reason of delay of not processing the documents.
Here is my file number which i got on submission of documents.
File # gz04c[protected]