India Post — Speed post parcel not still not delivered after 3 weeks

I booked a parcel from Jaipur GPO on the date of 31.08.2023 to Sonipat firstly its on hold for so many days after raising a complaint on 8.09.2023 they assured to take action against it but on 12.09.2023 they updated on the portal that the parcel delivered to the address but in reality the receiver did not get the parcel and now the are not doing anything.
Tracking ID ER[protected]IN
IVR[protected]
Kindly rearrange the delivery of the parcel or send back to the me ( The sender) because the parcel holding precious and valuable item and i have memories with them i trusted the INDIAN POST but now feeling guilty for trusting them. i have doubt that the post man is holding my parcel with him .
Am requesting you kindly find my parcel and send it back to me (the sender) or to the delivery address.