Blue Dart Express — Undelivered parcel for over 12 days

A parcel in the name of Poulami Chakraborty was dispatched via Blue Dart, Bengaluru to on 29th September. The delivery was supposed to be done by 6th October but 12 days and counting, I haven't received my parcel yet. I have paid 1000 INR for the delivery as per their charges and utter lack of responsibility 8s what I am getting in return. I have called their helpline and was told that I shall receive the package by 10th. Everyday starting 10th October 2022, they send me a 'out for delivery' message only to not deliver the package. And they update their website with 'prohibited area restriction'. They haven't tried calling me or they haven't tried delivering in the first place. There is no entry restriction whatsoever in my building and I receive parcels from other shipping companies all the time. I have never faced such anxiety and tension that I am currently facing due to blue dart. Please help.