India Post — Speed Post Portal "Consignment details not found". Today is 30 July

I have sent documents through Speed Post from Kolkata GPO on 24th July at 13.30 hrs. Delivery address is Wagle Industrial Estate, Thane -4000604.
Their site showed that consignment details were not found.
No update since 24th July. Today is 30th July
I have contacted Kolkata GPO but in vain.
I would like to know where is this parcel and when will it be delivered
I sent mails to [protected]@rediffmail.com on 28th July but there is no revert.

I am requesting you to deliver the consignment.
This consignment is most urgent.