Kolkata Foreign Lcao — parcel stuck at kolkata foreign lcao from last 8 days

Address:

New Delhi, Delhi, 110075

Hi, i ordered an item from aliexpress and it reached india on 25oct19 however since then it has been stuck at kolkata foreign lcao. My tracking number is rb[protected]sg. The current status is india, kolkata foreign lcao, transfer from office of exchange (Inb).
I dont understand why they are holding it there. It should have been delivered to me before 31oct.
Kindly get it delivered to me as soon as possible