India Post — International speed post not delivered

Address:

Muzaffarpur, Bihar

I had booked a letter through speed post which was to be delivered at a University in Estonia. It contained academic documents. The item was booked in Muzaffarpur, Bihar, on the 29th of April, 2015. I was tracking the article on India post website. The last information is that the bag was despatched to the foreign post office from NSH New Delhi. This is dated the 5th of May. After the 5th of May there is no information as to the whereabouts of my letter. My tracking number is EF[protected]IN. Regards, Girish Agarwal