India Post — Delay of delivery and parcel sent to wrong place by mistake

Address: Kamrup Metropolitan, Assam, 783380

Website: [email protected]

Sir,
I sent some important things by parcel from Hyderabad gpo to Bongaigaon Assam on 26th Dec '16.
They told me that it'll be received within a week.
But its more than 20 days and I have not receive the parcel. The the big problem is from Guwahati on 13/1/2017 the parcel has been sent to Silchar by mistake.
I request you kindly to look out the matter and take kind necessary action.
Details of my item status I will upload and tracking number is - CA[protected]IN
Thank you