India Post — Contents missing from the Package

Address:

Eroor South Ernakulam Kochi

Indian Speed Post consignment no EL[protected]IN was booked from Ernakulam from Tripunithura SO on 14Dec 2021 for Mhow.It consisted of 6 sarees.It has been received on the 18th Dec2021 by Mhow SO and not yet delivered.
Today upon tracking the package, the receiving party at Mhow was requesed to send someone, to personally check and collect the package
it was observed that Carton was lying open with the post office and sarees were missing in it.
There has been no intimation from the post office that they have not delivered the parcel.Why are they waiting and have not taken any action till now.
I run a small business and have been using Indian speed Post since 2016 (Domestic and International) to never face a problem ever.I have been recommending it to other entrepreneurs as to how reliable Indian Post is.I am so disappointed today to learn that my contents are missing and Post is doing nothing about it.The phone number of Mhow post office is not working.The receiving party met the lady who is head incharge, she is giving no clear solution as to why was the carton lying with her from last 4 days and what is being done about it.They are not letting the receiving party see the box, check its contents to gather the correct information as to how many sarees are missing.She says as the weight was less so they have not deivered the package.From last four days the package is lying open in the post office and there has been no intimation to anybody.
Kindly let me know what are the steps being taken to retrieve my lost sarees.How can a carefully packed carton be opened by anyone?How can contents go missing? I am attaching the image of the contents (6 sarees)which were part of the box.