[Resolved]  India Post — Booked speed post article on 3rd of August but it has not been delivered till now

Sir/ Maam
I would like to bring to your notice that the speed post article I booked from Mlkaganj so 110007, Delhi on the 3rd of august to be delivered to Guwahati, Assam has not been delivered till now. The tracking details are also not updated and I couldn't see where my parcel has reached. I have lodged several complaints including the complaint box of the India post website and sent several emails to the concerned department and head office. Until now I haven't been intimated with any of the processes. I would like to know where my parcel is and when it is going to be delivered. If I found the parcel, damaged or any of its items missing the India post should be held responsible for it and should do the needful.
Please try to resolve the issue as soon as possible.
Thank you.