India Post — package delayed/stuck

I had a package sent from the us via dhl who handed it over to india post after germany on 18 dec 2018, with india post tracking number: rx[protected]de. The tacking details updated on the 26 dec 2018 mentions "transfer from office of exchange (Inb)" at location "delhi international mail centre". There are no further updates and i cannot get through to the customer care number on india post website. I don't understand how there could be such a delay of over 18 days (As of today) in today's postal environment without an update or notification.