India Post — Chintal post office and idpl (hyderabad) doesn't allow me to send international shipments

Address: 500004

This is an ongoing problem, i have been selling online and i get some 10-15 orders that i need to use post office to send shipments.

They do not take my packages, stating "we do not know what is inside" although i have "declaration form" attached, they still can't believe what i am sending and hence refuse to take them.
Now, i am selling "immitation jewelry" and i mentioned the same on declaration form!
This is the problem i'm facing with your pathetic service.
i can't even do my business.

address of this post office
Chintal, Hyderabad - 500054, Near Ayyappa Swamy Temple