India Post — "Item delivery confirmed" status but article not received yet

My speed post parcel ED[protected]IN booked on 29th July 2022 from delhi to deliver to my pin code 813205. Today is 8th August, Still I haven't received my parcel yet. My parcel already been in late. But the status as of 6th August 2022 17:19. The tracking status shows that the "item delivery confirmed" at BishanpurcBO. But the recipient never got the package. The package was not even handed over to anyone who knows OR nearby my house. There was a phone number of recipient provided on the label & yet nobody received a call. I have inquired in the surrounding buildings as well as Bishanpur BO postman & nobody has reported receiving the package. Then why it is shown "item delivery confirmed". India post credibility is on question mark.