Passport Office Mumbai — police delaying all process even verification done 20 days back - mulund police station

Address:

Mumbai City, Maharashtra, 400081

Hi

I have received the notification from your office that police has not yet submitted verification from there end. I was shocked to se this message.
The verification has been done long back by personally visiting with all required documents to police station. (Mulund east - navghar).
When went to enquries what happened why there is a delay the police was arrogant and told me that due to festival season we could not complete all forms and we were at other duties.

I don't understand how to complaint and whom should i complaint. I was needed passport to visit officially to complete one project. All visa process have been delayed due to this.
I need your quick help and i am also planning to troll shushma swaraj regarding this.